**a(n) = the smallest positive integer such that a(n) *(2^n -2) is a multiple of n.**

*1, 1, 1, 2, 1, 3, 1, 4, 3, 5, 1, 6, 1, 7, 5, 8, 1, 9, 1, 10, 7, 11, 1, 12, 5, 13, 9, 2, 1, 15, 1*

*2 seqfan posts*

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

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