References to A003688

a(n) = 3*a(n-1) + a(n-2).
1, 4, 13, 43, 142, 469, 1549, 5116, 16897, 55807, 184318, 608761, 2010601


1 seqfan posts

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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