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n 为正整数,f(n)=1^n+2^(n-1)+3^(n-2)+…+(n-1)^2+n ,求 f(n+1)/f(n) 的最小值 ,我先把 f(n) 的值列出来。
f(n) =1, 3, 8, 22, 65, 209, 732, 2780, 11377, 49863, 232768, 1151914, 6018785, 33087205, 190780212, 1150653920, 7241710929, 47454745803, 323154696184, 2282779990494, 16700904488705, 126356632390297, 987303454928972, 7957133905608836, 66071772829247409,...... |
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