a(0) = a(1) = a(2) = 1; thereafter a(n) = a(n-1) + a(n-3).
1, 1, 1, 2, 3, 4, 6, 9, 13, 19, 28, 41, 60, 88, 129, 189, 277, 406, 595, 872, 1278, 1873
6 seqfan posts
Mon Jul 23 04:20:12 CEST 2012 [seqfan] About A214551
Tue Jul 26 02:52:43 CEST 2011 [seqfan] Re: A193376 Tabl = 20 existing sequences
Mon Jul 25 13:33:50 CEST 2011 [seqfan] Re: A193376 Tabl = 20 existing sequences
Sun May 29 20:44:24 CEST 2011 [seqfan] Repeated largest or second largest factor in term ratio
Sat Oct 16 16:03:42 CEST 2010 [seqfan] Re: Penney's game sequences
Fri Oct 15 22:21:32 CEST 2010 [seqfan] Penney's game sequences
Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword
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