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A095685 Expansion of (1+x)^4/(1-11*x+11*x^2-x^3). 1
1, 15, 160, 1600, 15856, 156976, 1553920, 15382240, 152268496, 1507302736, 14920758880, 147700286080, 1462082101936, 14473120733296, 143269125231040, 1418218131577120, 14038912190540176, 138970903773824656, 1375670125547706400, 13617730351703239360 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Colin Barker, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (11,-11,1).

FORMULA

a(n) = 18*A072256(n)-2, n>1. - R. J. Mathar, Jan 11 2009

a(n) = -2+3*(5-2*sqrt(6))^n*(3+sqrt(6))-3*(-3+sqrt(6))*(5+2*sqrt(6))^n for n>1. - Colin Barker, Mar 05 2016

PROG

(PARI) Vec((1+x)^4/(1-11*x+11*x^2-x^3) + O(x^25)) \\ Colin Barker, Mar 05 2016

CROSSREFS

Sequence in context: A206811 A027544 A021048 * A263514 A067361 A014920

Adjacent sequences:  A095682 A095683 A095684 * A095686 A095687 A095688

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane, Jul 04 2004

STATUS

approved

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Last modified November 21 16:08 EST 2017. Contains 295003 sequences.