{"title":"(1+x^k) \u306e\u4e57\u7a4d\u3092\u5c55\u958b\u3057\u305f\u3068\u304d\u306e\u4fc2\u6570\u30fb\u305d\u306e 3","provider_url":"https://hatena.blog","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fe10s.hateblo.jp%2Fentry%2F2015%2F09%2F04%2F230527\" title=\"(1+x^k) \u306e\u4e57\u7a4d\u3092\u5c55\u958b\u3057\u305f\u3068\u304d\u306e\u4fc2\u6570\u30fb\u305d\u306e 3 - \u30e8\u30fc\u30ad\u30e7\u30af\u30c7\u30a4\" 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://e10s.hateblo.jp/","blog_title":"\u30e8\u30fc\u30ad\u30e7\u30af\u30c7\u30a4","width":"100%","provider_name":"Hatena Blog","categories":["\u6570\u5b66"],"author_url":"https://blog.hatena.ne.jp/electrolysis/","version":"1.0","url":"https://e10s.hateblo.jp/entry/2015/09/04/230527","published":"2015-09-04 23:05:27","type":"rich","author_name":"electrolysis","height":"190","image_url":"https://cdn.blog.st-hatena.com/images/theme/og-image-1500.png","description":"(1+x^k) \u306e\u4e57\u7a4d\u3092\u5c55\u958b\u3057\u305f\u3068\u304d\u306e\u4fc2\u6570 - \u30e8\u30fc\u30ad\u30e7\u30af\u30c7\u30a4 (1+x^k) \u306e\u4e57\u7a4d\u3092\u5c55\u958b\u3057\u305f\u3068\u304d\u306e\u4fc2\u6570\u30fb\u305d\u306e 2 - \u30e8\u30fc\u30ad\u30e7\u30af\u30c7\u30a4 \u524d\u56de\u306e\u7d9a\u304d\u3068\u3057\u3066\u3001$$\\begin{cases} q_0(0)=1 \\\\ q_n(r)=0 & \\qty(r \\frac{n(n+1)}{2}) \\\\ q_n(r) = q_{n-1}(r)+q_{n-1}(r-n) \\end{cases}$$\u3068\u3044\u3046\uff08\u4e00\u822c\u5316\u3055\u308c\u305f\uff09\u6f38\u5316\u5f0f\u3067\u8868\u3055\u308c\u308b\u6570\u5217 $ q_n(r)$ \u3092\u8abf\u3079\u308b\u3002$ q_n(r)$ \u3092\u66f8\u304d\u51fa\u3057\u3066\u307f\u305f\u8868\u3092\u767a\u5c55\u3055\u305b\u308b\u3002 n\\r 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 \u2026"}