{"published":"2012-04-24 00:00:00","type":"rich","title":"Project Euler 137","url":"https://inamori.hateblo.jp/entry/20120424/p1","width":"100%","categories":["\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0","Python"],"blog_url":"https://inamori.hateblo.jp/","version":"1.0","description":"Problem 137 AF(x) = xF1 + x2F2 + x3F3 + ... xAF(x) = x2F1 + x3F2 + x4F3 + ... x2AF(x) = x3F1 + x4F2 + x5F3 + ... \u5f15\u304d\u7b97\u3057\u3066\u3001 (1 - x - x2)AF(x) = xF1 + x2(F2 - F1) + x3(F3 - F2 - F1) + ... Fk = Fk-1 + Fk-2 F1 = F2 = 1 \u3092\u4f7f\u3063\u3066\u3001 (1 - x - x2)AF(x) = x AF(x)\u304c\u6574\u6570\u3060\u304b\u3089\u3053\u308c\u3092n\u3068\u3057\u3066\u3001 nx2 + (n + 1)x - 1 = 0 \u3053\u308c\u304c\u6709\u7406\u6570\u89e3\u3092\u6301\u3064\u21d4\u5224\u5225\u5f0f\u304c\u5e73\u65b9\u2026","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20120424%2Fp1\" title=\"Project Euler 137 - inamori\u2019s diary\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","author_url":"https://blog.hatena.ne.jp/inamori/","provider_url":"https://hatena.blog","blog_title":"inamori\u2019s diary","provider_name":"Hatena Blog","height":"190","author_name":"inamori","image_url":null}