美しい整数の世界 (780ﾚｽ)
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762: [age] 2024/11/28(木)21:18 ID:tl42a9XE(4/7) AAS
◆原始ピタゴラス数y=x+7
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table[floor[(1/4){((-1)^n+5√2) (1+√2)^(2floor[(n+1)/2])}]+a(-1)^a,{n,1,30},{a,3,4}]
{{5, 12}, {8, 15}, {48, 55}, {65, 72},
{297, 304}, {396, 403}, {1748, 1755},
{2325, 2332}, {10205, 10212},
{13568, 13575}, {59496, 59503},
{79097, 79104}, {346785, 346792},
{461028, 461035}, {2021228, 2021235}, {2687085, 2687092}, {11780597, 11780604},
{15661496, 15661503}, {68662368, 68662375},
{91281905, 91281912}, {400193625, 400193632},
{532029948, 532029955}, {2332499396, 2332499403},
{3100897797, 3100897804},
{13594802765, 13594802772},
{18073356848, 18073356855},
{79236317208, 79236317215},
{105339243305, 105339243312},
{461823100497, 461823100504},
{613962102996, 613962103003}}
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