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A173894
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a(n) = ceiling(A029826(n)/2).
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1
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1, 0, 1, 0, 0, 1, 0, 1, 0, 1, 1, 1, 1, 1, 1, 1, 2, 1, 2, 2, 3, 3, 3, 4, 4, 5, 6, 7, 8, 10, 11, 14, 16, 19, 22, 25, 31, 35, 42, 49, 58, 68, 80, 94, 110, 130, 152, 180, 210, 248, 292, 343, 404, 474, 558, 656, 772, 908, 1068, 1256, 1478, 1738, 2045, 2406, 2829, 3328, 3914, 4605, 5416, 6371, 7494, 8815, 10369, 12197, 14347
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OFFSET
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0,17
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LINKS
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Index entries for linear recurrences with constant coefficients, signature (-1,0,1,1,1,1,1,0,-1,-1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,-1,-1,-1,-1,-1,0,1,1).
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FORMULA
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MATHEMATICA
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A029826 = CoefficientList[Series[1/(1+x-x^3-x^4-x^5-x^6-x^7+x^9+x^10), {x, 0, 250}], x];
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PROG
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(Magma)
R<x>:= PowerSeriesRing(Integers(), 105);
A029826:= Coefficients(R!( 1/(1+x-x^3-x^4-x^5-x^6-x^7+x^9+x^10) ));
(Sage)
A029826=[( 1/(1+x-x^3-x^4-x^5-x^6-x^7+x^9+x^10) ).series(x, n+1).list()[n] for n in (0..100)]
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CROSSREFS
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KEYWORD
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nonn,easy
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AUTHOR
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STATUS
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approved
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