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A045538号
最小的数字k,使kn包含两个相同的连续数字。
2
11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 1, 12, 9, 8, 15, 7, 7, 8, 6, 5, 16, 1, 5, 6, 4, 13, 37, 4, 4, 10, 5, 7, 1, 13, 13, 4, 3, 3, 3, 5, 13, 8, 8, 1, 5, 7, 4, 3, 9, 2, 5, 17, 9, 21, 1, 2, 2, 2, 2, 5, 2, 9, 7, 7, 7, 1, 5, 8, 8, 10, 5, 2, 7, 3, 3, 3, 1, 15, 7, 5, 14, 13, 2, 4, 3, 4, 6, 1, 5, 10, 5
抵消
1,1
数学
snk[n_]:=模块[{k=1},While[!MemberQ[Differences[IntegerDigits[k*n]],0],k++];k];数组[snk,100](*哈维·P·戴尔2013年5月4日*)
关键词
基础,非n
状态
经核准的