A001808 - OEIS

A001808

Expansion of 1/((1+x)*(1-x)^12).

1, 11, 67, 297, 1068, 3300, 9076, 22748, 52834, 115126, 237590, 467842, 884236, 1611908, 2845492, 4880668, 8157227, 13316953, 21280337, 33346963, 51325352, 77699128, 115837592, 170260168, 246965732, 353839564, 501152588, 702169700, 973886344, 1337915096

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OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (11,-54,154,-275,297,-132,-132,297,-275,154,-54,11,-1).

MATHEMATICA

CoefficientList[Series[1/((1+x)(1-x)^12), {x, 0, 50}], x] (* Vincenzo Librandi, Feb 24 2012 *)

LinearRecurrence[{11, -54, 154, -275, 297, -132, -132, 297, -275, 154, -54, 11, -1}, {1, 11, 67, 297, 1068, 3300, 9076, 22748, 52834, 115126, 237590, 467842, 884236}, 30] (* Harvey P. Dale, Jun 22 2014 *)

PROG

(PARI) Vec(1/((1+x)*(1-x)^12)+O(x^20)) \\ Edward Jiang, Sep 07 2014

CROSSREFS

Sequence in context: A142645 A201605 A268458 * A258479 A035041 A125591

Adjacent sequences: A001805 A001806 A001807 * A001809 A001810 A001811

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved