Indices n such that A123709(n) = 8 = number of nonzero terms in row n of triangle A123706.
12, 18, 20, 24, 28, 36, 40, 44, 45, 48, 50, 52, 54, 56, 63, 68, 72, 75, 76, 80, 88, 92, 96
2 seqfan posts
Thu Feb 9 16:30:57 CET 2012 [seqfan] Re: A123712 and A178212