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A188696 Expansion of (1+x^2)/(1-26*x+x^2-26*x^3+2*x^4). 2
1, 26, 676, 17576, 456974, 11881272, 308911722, 8031669672, 208822498874, 5429361243280, 141162775414434, 3670216121163384, 95425202122161082, 2481044412493313472, 64506872816303408306, 1677171363634329163848, 43606264885996836679850, 1133757932276682326501264, 29477577416016603603796450, 766413663428463660467554840 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
J. Noonan and D. Zeilberger, The Goulden-Jackson cluster method: extensions, applications and implementations, arXiv:math/9806036 [math.CO], 1998.
MATHEMATICA
CoefficientList[Series[(1 + x^2)/(1 - 26*x + x^2 - 26*x^3 + 2*x^4), {x, 0, 30}], x] (* Vincenzo Librandi, Dec 09 2012 *)
PROG
(Maxima) makelist(coeff(taylor((1+x^2)/(1-26*x+x^2-26*x^3+2*x^4), x, 0, n), x, n), n, 0, 19); /* Bruno Berselli, Jun 05 2011 */
(PARI) Vec((1+x^2)/(1-26*x+x^2-26*x^3+2*x^4)+O(x^99)) \\ Charles R Greathouse IV, Jun 05, 2011
CROSSREFS
Cf. A188697.
Sequence in context: A171300 A360509 A188697 * A009970 A041313 A042302
KEYWORD
nonn,easy
AUTHOR
N. J. A. Sloane, Apr 08 2011
STATUS
approved

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Last modified June 13 22:21 EDT 2024. Contains 373391 sequences. (Running on oeis4.)