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 A122015 Expansion of a rational g.f., see formula. 1
 1, 11, 41, 54, 129, 256, 529, 1083, 2233, 4606, 9505, 19611, 40513, 83657, 172805, 356963, 737425, 1523422, 3147277, 6502104, 13433121, 27752487, 57336161, 118455746, 244728361, 505606731, 1044579861, 2158095229, 4458611849 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Harvey P. Dale, Table of n, a(n) for n = 1..1000 Index entries for linear recurrences with constant coefficients, signature (0,3,4,1,-4,-6,-4,-1). FORMULA G.f.: -x*(21*x^7+65*x^6+77*x^5+39*x^4-17*x^3-38*x^2-11*x-1)/((x+1)*(x^3+x^2-1)*(x^4+2*x^3+x^2+x-1)). [Colin Barker, Nov 02 2012] MATHEMATICA CoefficientList[Series[-(21 x^7 + 65 x^6 + 77 x^5 + 39 x^4 - 17 x^3 - 38 x^2 - 11 x - 1)/((x + 1) (x^3 + x^2 - 1) (x^4 + 2 x^3 + x^2 + x - 1)), {x, 0, 33}], x] (* Vincenzo Librandi, Jun 15 2015 *) LinearRecurrence[{0, 3, 4, 1, -4, -6, -4, -1}, {1, 11, 41, 54, 129, 256, 529, 1083}, 30] (* Harvey P. Dale, Jan 05 2023 *) CROSSREFS Sequence in context: A065049 A158201 A350006 * A192820 A078653 A040167 Adjacent sequences: A122012 A122013 A122014 * A122016 A122017 A122018 KEYWORD nonn,less,easy AUTHOR Roger L. Bagula, Sep 11 2006 STATUS approved

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Last modified November 30 21:14 EST 2023. Contains 367462 sequences. (Running on oeis4.)