{"width":"100%","provider_name":"Hatena Blog","image_url":null,"author_url":"https://blog.hatena.ne.jp/tanakaBox/","height":"190","blog_url":"https://boxnos.hatenablog.com/","blog_title":"\u30dc\u30af\u30ce\u30b9","description":"\u3061\u3068\u4e88\u7fd2\u3057\u3068\u3053\u3046\u3002\u7d20\u6570 - Wikipedia\u3088\u308a\u3002\u30aa\u30a4\u30e9\u30fc\u306e\u767a\u898b\u3057\u305f\u5f0f\u3001f(n) = n^2 + n + 41 \u306f\u3001n = 0, \u2026, 39 \u306b\u304a\u3044\u3066\u5168\u3066\u7d20\u6570\u3068\u306a\u308b\u3002 (length (filter prime? (list-tabulate 40 (lambda (n) (+ (* n n) n 41))))) ; 40 \u30db\u30f3\u30c8\u30c0\u3002\u305d\u308c\u4ee5\u4e0a\u3060\u3068\u3002 (length (filter prime? (list-tabulate 100 (lambda (n) (+ (* n n) n 41))))) ; 86 (length (filter prime? (list-tabulate 1000 \u2026","version":"1.0","published":"2008-04-09 05:21:45","type":"rich","title":" \u7d20\u6570\u306e\u304a\u52c9\u5f37","author_name":"tanakaBox","categories":["Scheme"],"provider_url":"https://hatena.blog","url":"https://boxnos.hatenablog.com/entry/20080409/1207686105","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fboxnos.hatenablog.com%2Fentry%2F20080409%2F1207686105\" title=\" \u7d20\u6570\u306e\u304a\u52c9\u5f37 - \u30dc\u30af\u30ce\u30b9\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>"}