G.f.: 1/((1-x)^4*(1+x)).
1, 3, 7, 13, 22, 34, 50, 70, 95, 125, 161, 203, 252, 308, 372, 444, 525, 615, 715, 825
3 seqfan posts
Tue Jan 5 19:43:34 CET 2010 [seqfan] Re: A graph counting problem
Sat Jan 2 16:36:01 CET 2010 [seqfan] Re: A graph counting problem
Sun Jan 11 23:36:02 CET 2009 [seqfan] Index of linear recurrences
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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