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 A147620 G.f.: 1/(1 - x - 2 x^2 + x^3 + x^4 + 2 x^6 - 5 x^8 + 2 x^10 + x^12 + x^13 - 2 x^14 - x^15 + x^16). 0
 1, 1, 3, 4, 8, 12, 19, 29, 46, 70, 111, 170, 271, 422, 668, 1048, 1655, 2603, 4104, 6453, 10167, 15989, 25175, 39599, 62329, 98064, 154335, 242845, 382183, 601399, 946451, 1489366, 2343847, 3688412, 5804459, 9134287, 14374533, 22620800, 35597998 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,3 LINKS Index entries for linear recurrences with constant coefficients, signature (1, 2, -1, -1, 0, -2, 0, 5, 0, -2, 0, -1, -1, 2, 1, -1). MATHEMATICA f[x_] =-1 + x^2 - x^6 - x^7 + x^8; g[x] = ExpandAll[ -f[x]*x^8*f[1/x]]; a = Table[SeriesCoefficient[Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}] PROG (PARI) Vec(1/(1-x-2*x^2+x^3+x^4+2*x^6-5*x^8+2*x^10+x^12+x^13-2*x^14-x^15+x^16) + O(x^40)) \\ Jinyuan Wang, Mar 10 2020 CROSSREFS Sequence in context: A076136 A064188 A229990 * A195746 A088953 A281612 Adjacent sequences:  A147617 A147618 A147619 * A147621 A147622 A147623 KEYWORD nonn AUTHOR Roger L. Bagula, Nov 08 2008 EXTENSIONS Definition corrected by N. J. A. Sloane, Nov 09 2008 STATUS approved

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Last modified January 18 03:09 EST 2021. Contains 340249 sequences. (Running on oeis4.)