a(n)=((1+sqrt8)(2+sqrt2)^n+(1-sqrt8)(2-sqrt2)^n)/2
1, 6, 22, 76, 260, 888, 3032, 10352, 35344, 120672, 412000, 1406656, 4802624
2 seqfan posts
Fri Mar 12 08:43:29 CET 2010 [seqfan] Re: gentle reminder
Thu Nov 19 17:19:12 CET 2009 [seqfan] detective work related to Creighton Dement's "Floretions"
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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