150927

c C
rb Ruby
py Python
RC Rosetta Codeにもコードあり

08.150308.001.Clock sequence / rb

06.150927.002.オイラー関数のベキ(2) / rb
06.150927.001.k角数定理？ / rb
06.150924.001.オイラー関数のベキ(1) / rb
06.150922.002.フリーマン・ダイソンによるτ関数に関する公式 / rb
06.150922.001.Ulam spiral / rb
06.150921.003.階段状に現れるフィボナッチ数列 / rb
06.150921.002.縦読み、横読みの一般化 / rb
06.150921.001.Half-Catalan number / rb
06.150920.001.分割が絡んだ係数について / rb
06.150919.001.二重根号が外れてきれいになる式 / rb
06.150915.001.ラマヌジャンが見つけた等式 / rb
06.150914.002.xx + 27yy 型の素数 / rb
06.150914.001.Number of knight's tours on a m×n chessboard(3) / c
06.150913.001.Number of knight's tours on a m×n chessboard(2) / c
06.150912.001.Number of knight's tours on a m×n chessboard(1) / c
06.150910.002.コード用
06.150910.001.Number of knight's tours on a 3×k chessboard(2) / rb
06.150908.001.Number of knight's tours on a 3×k chessboard(1) / c
06.150904.001.桂馬飛び / rb
06.150903.001.p^n + s^n = q^n + r^n / rb
06.150902.001.p^5 + s^5 = q^5 + r^5 / rb
06.150830.003.p^4 + s^4 = q^4 + r^4 / rb
06.150830.002.アフィン暗号(2) / rb
06.150830.001.アフィン暗号(1) / rb
06.150829.001.ラマヌジャン予想(6)
06.150828.001.どの２つの和も平方数(4) / rb
06.150827.001.どの２つの和も平方数(3) / rb
06.150824.006.どの２つの和も立方数(16) / rb
06.150824.005.どの２つの和も立方数(15) / rb
06.150824.004.どの２つの和も立方数(14) / rb
06.150824.003.どの２つの和も立方数(13) / rb
06.150824.002.どの２つの和も立方数(12) / rb
06.150824.001.どの２つの和も立方数(11) / rb
06.150823.007.どの２つの和も立方数(10) / rb
06.150823.006.どの２つの和も立方数(9) / rb
06.150823.005.どの２つの和も立方数(8) / rb
06.150823.004.どの２つの和も立方数(7) / rb
06.150823.003.どの２つの和も立方数(6) / rb
06.150823.002.どの２つの和も立方数(5) / rb
06.150823.001.どの２つの和も立方数(4) / rb
06.150822.004.どの２つの和も立方数(3) / rb
06.150822.003.累乗数 / rb
06.150822.002.どの２つの和も立方数(2) / rb
06.150822.001.どの２つの和も立方数(1) / rb
06.150821.001.どの２つの和も平方数(2) / rb
06.150820.001.どの２つの和も平方数(1) / rb
06.150816.002.円周率 / rb
06.150816.001.高次元カタラン数 / rb
06.150815.001.隣り合う素数の差と積 / rb
06.150806.002.Number of n-digit right-truncatable primes / rb
06.150806.001.Right-truncatable prime / rb
06.150805.001.タウ函数の合同関係 / rb
06.150804.001.Pisano period / rb
06.150803.002.Almost Integer / rb
06.150803.001.4p - 1 型のヘーグナー数の性質 / rb
06.150802.001.ラマヌジャン予想(5) / py
06.150801.003.Ramanujan's tau function(3) / py
06.150801.002.ラマヌジャン予想(4) / rb
06.150801.001.
06.150731.002.
06.150731.001.ラマヌジャン予想(3) / rb
06.150730.001.ラマヌジャン予想(2) / rb
06.150728.002.ラマヌジャン予想(1) / rb
06.150728.001.Ramanujan's tau function(2) / rb
06.150727.003.Ramanujan's tau function(1) / rb
06.150727.002.Reverse and Add(2) / rb
06.150727.001.Reverse and Add(1) / rb
06.150726.005.回文数式 / rb
06.150726.004.Bell number / rb
06.150726.003.1 / n の性質について / rb
06.150726.002.Primes of the form identical odd digits followed by a 1 / rb
06.150726.001.Prime numbers of the form 33…331 / rb
06.150720.003.Collatz conjecture(2) / rb
06.150720.002.Collatz conjecture(1) / rb
06.150720.001.隣接素数の和で表す表し方の数 / rb
06.150719.002.Aliquot sequence(2) / rb
06.150719.001.Aliquot sequence(1) / rb
06.150709.002.素数の個数(5) / rb
06.150709.001.素数の個数(4) / rb
06.150708.001.素数の個数(3) / rb
06.150707.003.素数の個数(2) / rb
06.150707.002.素数の個数(1) / rb
06.150707.001.素数の和 / rb
06.150706.001.Carmichael number / rb
06.150625.001.ROT13 と ROT47 / rb
06.150624.002.素数を順番につなぎ合わせた数について(4) / rb
06.150624.001.素数を順番につなぎ合わせた数について(3) / rb
06.150621.004.素数を順番につなぎ合わせた数について(2) / rb
06.150621.003.素数を順番につなぎ合わせた数について(1) / rb
06.150621.002.2, 3, 5, 7 を使った素数 / rb
06.150621.001.2^i + 3^i + 5^i + 7^i 型の素数 / rb
06.150620.002.i (1以上9以下)を含むならば、i が i 個含む数の個数について(2) / rb
06.150620.001.i (1以上9以下)を含むならば、i が i 個含む数の個数について(1) / rb
06.150613.002.双子素数と隣り合う双子素数の和 / rb
06.150613.001.隣り合う素数の和 / rb
06.150607.003.Look-and-say sequence / rb / RC
06.150607.002.Mian-Chowla sequence / rb
06.150607.001.各桁の和と自身との和について / rb
06.150603.001.塊の個数 / rb
06.150531.002.Gauss circle problem / rb
06.150531.001.Ulam number / rb
06.150529.001.Toothpick Sequence / rb
06.150527.001.φの和 / rb
06.150525.001.Conway-Guy sequence / rb
06.150524.001.「普通の分数の足し算」と「日付の足し算」が一致する組合せ / rb
06.150523.001.2〜Nまでをある規則にしたがって並びかえる / rb
06.150517.001.ｎ進グレイコード ↔ ｎ進表記 / rb
06.150503.003.| σ(i + 1) - σ(1) | ≠ 1 を満たすσの個数 / rb
06.150503.002.3 6 9 2 5 8 1 4 7 (2) / rb
06.150503.001.Ducci sequence / rb
06.150502.001.3 6 9 2 5 8 1 4 7 (1) / rb
06.150429.001.p(n | 和因子は相異なる) / rb
06.150425.002.p(n | 和因子は奇数) / rb
06.150425.001.Taxi-cab numbers: sums of 2 cubes in more than 1 way / rb
06.150422.001.カプレカ数 / rb
06.150419.001.864197532（高速化） / rb
06.150418.002.864197532 / rb
06.150418.001.Lucas、Perrin そして McIrvin（剰余について） / rb
06.150414.001.Lucas、Perrin そして McIrvin / rb
06.150413.002.Thue–Morse sequence / rb
06.150413.001.Schizophrenic number（連続する個数 2.0） / rb
06.150412.001.Schizophrenic number（連続する個数 1.0） / rb
06.150410.001.Schizophrenic number / rb
06.150405.003.Generalization of the Zeckendorf representation / rb
06.150405.002.Zeckendorf number representation / rb / RC
06.150405.001.Self-descriptive number / rb
06.150330.001.Heterosquare / rb
06.150329.004.Connell Sequence / rb
06.150329.003.21397 / rb
06.150329.002.Göbel's Sequence / rb
06.150329.001.Somos-k sequence / rb
06.150328.001.Perrin Pseudoprime / rb
06.150323.001.
06.150315.001.不思議数 / rb
06.150301.002.
06.150301.001.Silverman's Sequence / rb
06.150225.001.Square-free integer / rb
06.150224.002.Cyclic number / rb
06.150224.001.
06.150111.001.バイナリサーチ / rb
06.150110.004.リニアサーチ / rb
06.150110.003.マージソート / rb
06.150110.002.クイックソート / rb
06.150110.001.バブルソート / rb
06.150104.002.「n-クイーン」パズル / rb
06.150104.001.ナップザック問題 / rb
06.141027.001.Partition / py
06.140927.002.Lucky prime / rb
06.140927.001.Lucky number / rb
06.140831.001.Partition（高速化） / rb
06.140823.004.Prime Partition / rb
06.140823.003.Partition / rb
06.140823.002.
06.140823.001.
06.140813.001.最大増加部分列 / rb
06.140316.001.548834 / rb
06.140306.001.覆面算（SEND + MORE = MONEY） / rb

02.150822.001.連続する自然数の積は平方数ではない
02.130120.002.On the Inequality with Power-Exponential Function
02.130120.001.


09.150927.001.この記事
09.150913.001.
09.150829.001.
09.150827.001.
09.150822.001.
09.150815.001.
09.150801.001.
09.150727.001.
09.150720.001.
09.150706.001.
09.150607.001.
09.150531.001.
09.150529.001.
09.150525.001.
09.150503.001.
09.150418.001.
09.150412.001.
09.150405.001.
09.150330.001.
09.150329.001.

150913

c C
rb Ruby
py Python
RC Rosetta Codeにもコードあり

08.150308.001.Clock sequence / rb

06.150913.001.Number of knight's tours on a m×n chessboard(2) / c
06.150912.001.Number of knight's tours on a m×n chessboard(1) / c
06.150910.002.コード用
06.150910.001.Number of knight's tours on a 3×k chessboard(2) / rb
06.150908.001.Number of knight's tours on a 3×k chessboard(1) / c
06.150904.001.桂馬飛び / rb
06.150903.001.p^n + s^n = q^n + r^n / rb
06.150902.001.p^5 + s^5 = q^5 + r^5 / rb
06.150830.003.p^4 + s^4 = q^4 + r^4 / rb
06.150830.002.アフィン暗号(2) / rb
06.150830.001.アフィン暗号(1) / rb
06.150829.001.ラマヌジャン予想(6)
06.150828.001.どの２つの和も平方数(4) / rb
06.150827.001.どの２つの和も平方数(3) / rb
06.150824.006.どの２つの和も立方数(16) / rb
06.150824.005.どの２つの和も立方数(15) / rb
06.150824.004.どの２つの和も立方数(14) / rb
06.150824.003.どの２つの和も立方数(13) / rb
06.150824.002.どの２つの和も立方数(12) / rb
06.150824.001.どの２つの和も立方数(11) / rb
06.150823.007.どの２つの和も立方数(10) / rb
06.150823.006.どの２つの和も立方数(9) / rb
06.150823.005.どの２つの和も立方数(8) / rb
06.150823.004.どの２つの和も立方数(7) / rb
06.150823.003.どの２つの和も立方数(6) / rb
06.150823.002.どの２つの和も立方数(5) / rb
06.150823.001.どの２つの和も立方数(4) / rb
06.150822.004.どの２つの和も立方数(3) / rb
06.150822.003.累乗数 / rb
06.150822.002.どの２つの和も立方数(2) / rb
06.150822.001.どの２つの和も立方数(1) / rb
06.150821.001.どの２つの和も平方数(2) / rb
06.150820.001.どの２つの和も平方数(1) / rb
06.150816.002.円周率 / rb
06.150816.001.高次元カタラン数 / rb
06.150815.001.隣り合う素数の差と積 / rb
06.150806.002.Number of n-digit right-truncatable primes / rb
06.150806.001.Right-truncatable prime / rb
06.150805.001.タウ函数の合同関係 / rb
06.150804.001.Pisano period / rb
06.150803.002.Almost Integer / rb
06.150803.001.4p - 1 型のヘーグナー数の性質 / rb
06.150802.001.ラマヌジャン予想(5) / py
06.150801.003.Ramanujan's tau function(3) / py
06.150801.002.ラマヌジャン予想(4) / rb
06.150801.001.
06.150731.002.
06.150731.001.ラマヌジャン予想(3) / rb
06.150730.001.ラマヌジャン予想(2) / rb
06.150728.002.ラマヌジャン予想(1) / rb
06.150728.001.Ramanujan's tau function(2) / rb
06.150727.003.Ramanujan's tau function(1) / rb
06.150727.002.Reverse and Add(2) / rb
06.150727.001.Reverse and Add(1) / rb
06.150726.005.回文数式 / rb
06.150726.004.Bell number / rb
06.150726.003.1 / n の性質について / rb
06.150726.002.Primes of the form identical odd digits followed by a 1 / rb
06.150726.001.Prime numbers of the form 33…331 / rb
06.150720.003.Collatz conjecture(2) / rb
06.150720.002.Collatz conjecture(1) / rb
06.150720.001.隣接素数の和で表す表し方の数 / rb
06.150719.002.Aliquot sequence(2) / rb
06.150719.001.Aliquot sequence(1) / rb
06.150709.002.素数の個数(5) / rb
06.150709.001.素数の個数(4) / rb
06.150708.001.素数の個数(3) / rb
06.150707.003.素数の個数(2) / rb
06.150707.002.素数の個数(1) / rb
06.150707.001.素数の和 / rb
06.150706.001.Carmichael number / rb
06.150625.001.ROT13 と ROT47 / rb
06.150624.002.素数を順番につなぎ合わせた数について(4) / rb
06.150624.001.素数を順番につなぎ合わせた数について(3) / rb
06.150621.004.素数を順番につなぎ合わせた数について(2) / rb
06.150621.003.素数を順番につなぎ合わせた数について(1) / rb
06.150621.002.2, 3, 5, 7 を使った素数 / rb
06.150621.001.2^i + 3^i + 5^i + 7^i 型の素数 / rb
06.150620.002.i (1以上9以下)を含むならば、i が i 個含む数の個数について(2) / rb
06.150620.001.i (1以上9以下)を含むならば、i が i 個含む数の個数について(1) / rb
06.150613.002.双子素数と隣り合う双子素数の和 / rb
06.150613.001.隣り合う素数の和 / rb
06.150607.003.Look-and-say sequence / rb / RC
06.150607.002.Mian-Chowla sequence / rb
06.150607.001.各桁の和と自身との和について / rb
06.150603.001.塊の個数 / rb
06.150531.002.Gauss circle problem / rb
06.150531.001.Ulam number / rb
06.150529.001.Toothpick Sequence / rb
06.150527.001.φの和 / rb
06.150525.001.Conway-Guy sequence / rb
06.150524.001.「普通の分数の足し算」と「日付の足し算」が一致する組合せ / rb
06.150523.001.2〜Nまでをある規則にしたがって並びかえる / rb
06.150517.001.ｎ進グレイコード ↔ ｎ進表記 / rb
06.150503.003.| σ(i + 1) - σ(1) | ≠ 1 を満たすσの個数 / rb
06.150503.002.3 6 9 2 5 8 1 4 7 (2) / rb
06.150503.001.Ducci sequence / rb
06.150502.001.3 6 9 2 5 8 1 4 7 (1) / rb
06.150429.001.p(n | 和因子は相異なる) / rb
06.150425.002.p(n | 和因子は奇数) / rb
06.150425.001.Taxi-cab numbers: sums of 2 cubes in more than 1 way / rb
06.150422.001.カプレカ数 / rb
06.150419.001.864197532（高速化） / rb
06.150418.002.864197532 / rb
06.150418.001.Lucas、Perrin そして McIrvin（剰余について） / rb
06.150414.001.Lucas、Perrin そして McIrvin / rb
06.150413.002.Thue–Morse sequence / rb
06.150413.001.Schizophrenic number（連続する個数 2.0） / rb
06.150412.001.Schizophrenic number（連続する個数 1.0） / rb
06.150410.001.Schizophrenic number / rb
06.150405.003.Generalization of the Zeckendorf representation / rb
06.150405.002.Zeckendorf number representation / rb / RC
06.150405.001.Self-descriptive number / rb
06.150330.001.Heterosquare / rb
06.150329.004.Connell Sequence / rb
06.150329.003.21397 / rb
06.150329.002.Göbel's Sequence / rb
06.150329.001.Somos-k sequence / rb
06.150328.001.Perrin Pseudoprime / rb
06.150323.001.
06.150315.001.不思議数 / rb
06.150301.002.
06.150301.001.Silverman's Sequence / rb
06.150225.001.Square-free integer / rb
06.150224.002.Cyclic number / rb
06.150224.001.
06.150111.001.バイナリサーチ / rb
06.150110.004.リニアサーチ / rb
06.150110.003.マージソート / rb
06.150110.002.クイックソート / rb
06.150110.001.バブルソート / rb
06.150104.002.「n-クイーン」パズル / rb
06.150104.001.ナップザック問題 / rb
06.141027.001.Partition / py
06.140927.002.Lucky prime / rb
06.140927.001.Lucky number / rb
06.140831.001.Partition（高速化） / rb
06.140823.004.Prime Partition / rb
06.140823.003.Partition / rb
06.140823.002.
06.140823.001.
06.140813.001.最大増加部分列 / rb
06.140316.001.548834 / rb
06.140306.001.覆面算（SEND + MORE = MONEY） / rb

02.150822.001.連続する自然数の積は平方数ではない
02.130120.002.On the Inequality with Power-Exponential Function
02.130120.001.


09.150913.001.この記事
09.150829.001.
09.150827.001.
09.150822.001.
09.150815.001.
09.150801.001.
09.150727.001.
09.150720.001.
09.150706.001.
09.150607.001.
09.150531.001.
09.150529.001.
09.150525.001.
09.150503.001.
09.150418.001.
09.150412.001.
09.150405.001.
09.150330.001.
09.150329.001.