**For n >= 1, n n's take places at stage n: the first n takes the least untaken place (l.u.p.) and for 2<=k<=n, the k-th n takes the l.u.p. at least (k-1)*n places past the place of the first n.**

*1, 2, 3, 2, 4, 3, 5, 6, 3, 4, 7, 5, 4, 6, 8, 9, 4, 5, 7, 6, 10, 5, 8, 11, 7, 6, 5, 9, 12, 13, 8, 6*

*2 seqfan posts*

Index of A-numbers in seqfan: by ascending order by month by frequency by keyword

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