References to A217171

a(n)=number of arithmetic progressions of 2 or more positive integers, nondecreasing with sum n.
0, 1, 2, 3, 3, 6, 4, 6, 8, 8, 6, 13, 7, 10, 15, 12, 9, 19, 10, 16, 20, 15, 12, 26, 16, 17, 25


1 seqfan posts

Tue Jun 12 02:26:19 CEST 2012    [seqfan] Re: Prime signature of 1, and second signature

Index of A-numbers in seqfan: by ascending order    by month    by frequency    by keyword
Links to OEIS content are included according to The OEIS End-User License Agreement .