a(n)=5a(n-1)-2a(n-2); a(0)=1, a(1)=5.
1, 5, 23, 105, 479, 2185, 9967, 45465, 207391, 946025, 4315343, 19684665
4 seqfan posts
Tue Dec 15 02:58:04 CET 2009 [seqfan] Re: [math-fun] Divisibility sequences in OEIS.
Tue Dec 15 02:42:24 CET 2009 [seqfan] Re: [math-fun] Divisibility sequences in OEIS.
Sun Dec 13 19:54:06 CET 2009 [seqfan] Re: [math-fun] Divisibility sequences in OEIS.
Wed Apr 1 01:23:46 CEST 2009 [seqfan] Online Floretion Multiplier / Re: 2-d partitions, rotationally symmetric pieces
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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