{"blog_title":"inamori\u2019s diary","categories":["\u6570\u5b66","JavaScript"],"provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Finamori.hateblo.jp%2Fentry%2F20070712%2Fp1\" title=\"\u30b8\u30e3\u30f3\u30b1\u30f3\u3067\u6c7a\u7740\u304c\u3064\u304f\u307e\u3067\u306e\u56de\u6570\uff084\uff09 - 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>","blog_url":"https://inamori.hateblo.jp/","image_url":null,"author_url":"https://blog.hatena.ne.jp/inamori/","provider_name":"Hatena Blog","version":"1.0","url":"https://inamori.hateblo.jp/entry/20070712/p1","type":"rich","height":"190","published":"2007-07-12 00:00:00","width":"100%","description":"\u524d\u56de\u306e\u3001 (P(n, 1) + ... + P(n, n-1))E(n) = 1 + P(n, 1)E(n) + ... + P(n, n-1)E(n-1) \u306b\u3057\u305f\u304c\u3063\u3066\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u66f8\u304f\u3068\u3001 E(2) = 1.5 E(3) = 2.2500000000000004 E(4) = 3.214285714285715 E(5) = 4.485714285714287 E(6) = 6.219815668202768 E(7) = 8.646735791090634 E(8) = 12.104443799363817 E(9) = 17.091935291769775 E(10) = 24.3495\u2026","title":"\u30b8\u30e3\u30f3\u30b1\u30f3\u3067\u6c7a\u7740\u304c\u3064\u304f\u307e\u3067\u306e\u56de\u6570\uff084\uff09","author_name":"inamori"}