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A106804
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G.f.: (2-9x-4x^2)*x / [(1-5x+x^2)*(1-5x-x^2)].
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0
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0, 2, 11, 56, 285, 1452, 7406, 37816, 193295, 989002, 5065051, 25963276, 133199780, 683904902, 3514119571, 18069536436, 92975574865, 478701242652, 2466137174466, 12711910214796, 65558648361175, 338267429484502
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OFFSET
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0,2
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LINKS
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Table of n, a(n) for n=0..21.
Index entries for linear recurrences with constant coefficients, signature (10,-25,0,1).
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MATHEMATICA
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M = {{0, 0, 0, 1}, {1, 5, 0, 0}, {0, 1, 0, 0}, {0, 0, 1, 5}};
v[1] = {0, 1, 1, 2}; v[n_] := v[n] = M.v[n - 1]; terms = 20; a = Table[v[n][[1]], {n, 1, terms}]
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CROSSREFS
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Sequence in context: A212388 A198769 A037554 * A213098 A041129 A037490
Adjacent sequences: A106801 A106802 A106803 * A106805 A106806 A106807
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KEYWORD
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nonn
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AUTHOR
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Roger L. Bagula, May 30 2005
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EXTENSIONS
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Edited by the Associate Editors of the OEIS, Apr 09 2009
Mathematica code fixed by Olivier Gérard, Dec 13 2011
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STATUS
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approved
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