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A011761
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a(n) = a(n-1) + a(n-3), with a(0) = a(1) = 1, a(2) = 5.
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0
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1, 1, 5, 6, 7, 12, 18, 25, 37, 55, 80, 117, 172, 252, 369, 541, 793, 1162, 1703, 2496, 3658, 5361, 7857, 11515, 16876, 24733, 36248, 53124, 77857, 114105, 167229, 245086, 359191, 526420, 771506, 1130697
(list; graph; refs; listen; history; internal format)
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OFFSET
| 0,3
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MATHEMATICA
| a[0] := 1; a[1] := 1; a[2] = 5; a[n_] := a[n] =a[n - 1] + a[n - 3]; Table[a[n], {n, 50}] (* Alonso del Arte, Dec 05 2011 *)
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CROSSREFS
| Sequence in context: A120521 A022566 A047320 * A106745 A165776 A003273
Adjacent sequences: A011758 A011759 A011760 * A011762 A011763 A011764
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KEYWORD
| nonn
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AUTHOR
| Juan-Carlos Lerman (jclerm(AT)aztec.asu.edu)
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EXTENSIONS
| Name corrected by Arkadiusz Wesolowski, Dec 05 2011
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