For n = 0, 1, 2, a(n) = n; thereafter, a(n) = 2*a(n-1)-a(n-2)+a(n-3).
0, 1, 2, 3, 5, 9, 16, 28, 49, 86, 151, 265, 465, 816, 1432, 2513, 4410, 7739, 13581
2 seqfan posts
Thu Sep 16 19:44:47 CEST 2010 [seqfan] Initial Substrings of n-bit Binary Numbers Not Divisible by k