Bisection (even part) of number of partitions that do not contain 1 as a part A002865.
1, 1, 2, 4, 7, 12, 21, 34, 55, 88, 137, 210, 320, 478, 708, 1039, 1507, 2167, 3094
1 seqfan posts
Mon Jan 24 23:41:06 CET 2011 [seqfan] Re: Breaking news on partition numbers.