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A111121
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a(n) = a(n-3)^3 + a(n-2)^2 + a(n-1); a(1) = -1, a(2) = 0, a(3) = 1.
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0
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-1, 0, 1, 0, 1, 2, 3, 8, 25, 116, 1253, 30334, 3161239, 2890534072, 37908199848897, 39946852159641845000, 25587984997105954864555102857, 56071032677809871004962669691748664133130
(list; graph; refs; listen; history; internal format)
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OFFSET
| 1,6
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LINKS
| David Rock, Problem of the Week.
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EXAMPLE
| a(5)= a(2)^3 + a(3)^2 + a(4) = 0^3 + 1^2 + 0 = 1
a(9)= a(6)^3 + a(7)^2 + a(7) = 2^3 + 3^2 + 8 = 8 + 9 + 8 = 25
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MATHEMATICA
| a[1] = -1; a[2] = 0; a[3] = 1; a[n_] := a[n] = a[n - 3]^3 + a[n - 2]^2 + a[n - 1]; a /@ Range[20]
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CROSSREFS
| Sequence in context: A171199 A176962 A065619 * A107704 A041399 A183948
Adjacent sequences: A111118 A111119 A111120 * A111122 A111123 A111124
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KEYWORD
| sign
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AUTHOR
| Hamilton L. Hardison (HamiltonHardison(AT)gmail.com), Oct 15 2005
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EXTENSIONS
| More terms from Robert G. Wilson v (rgwv(at)rgwv.com), Oct 17 2005
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