A028050 - OEIS

A028050

Expansion of 1/((1-3x)(1-4x)(1-10x)(1-11x)).

1, 28, 515, 7910, 110241, 1448328, 18302575, 225096970, 2713995581, 32234230028, 378383333835, 4400300953230, 50784218810521, 582435753818128, 6644887820416295, 75474715560668690, 854031383578979061

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OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

Index entries for linear recurrences with constant coefficients, signature (28, -269, 1022, -1320).

FORMULA

a(n)=(3*11^(n+3)-4*10^(n+3)+4^(n+4)-3^(n+4))/168. [Yahia Kahloune, May 27 2013].

MATHEMATICA

CoefficientList[Series[1/((1-3x)(1-4x)(1-10x)(1-11x)), {x, 0, 30}], x] (* or *) LinearRecurrence[{28, -269, 1022, -1320}, {1, 28, 515, 7910}, 30] (* Harvey P. Dale, Jun 26 2025 *)

CROSSREFS

Sequence in context: A028000 A028067 A024771 * A026738 A026149 A028049

Adjacent sequences: A028047 A028048 A028049 * A028051 A028052 A028053

KEYWORD

nonn

AUTHOR

N. J. A. Sloane

STATUS

approved