A025792 - OEIS

A025792

Expansion of 1/((1-x)(1-x^9)(1-x^11)).

1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 5, 5, 6, 6, 6, 6, 6, 7, 7, 8, 8, 9, 9, 10, 10, 10, 11, 11, 12, 12, 13, 13, 14, 14, 15, 16, 16, 17, 17, 18, 18, 19, 19, 20, 21, 22, 23, 23, 24, 24, 25, 25, 26, 27, 28

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OFFSET

0,10

LINKS

Table of n, a(n) for n=0..64.

Index entries for linear recurrences with constant coefficients, signature (1, 0, 0, 0, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, -1, 1).

MATHEMATICA

CoefficientList[Series[1/((1-x)(1-x^9)(1-x^11)), {x, 0, 90}], x] (* or *) LinearRecurrence[ {1, 0, 0, 0, 0, 0, 0, 0, 1, -1, 1, -1, 0, 0, 0, 0, 0, 0, 0, -1, 1}, {1, 1, 1, 1, 1, 1, 1, 1, 1, 2, 2, 3, 3, 3, 3, 3, 3, 3, 4, 4, 5}, 90] (* Harvey P. Dale, Apr 13 2022 *)

CROSSREFS

Sequence in context: A130147 A345377 A096143 * A119447 A157720 A077463

Adjacent sequences: A025789 A025790 A025791 * A025793 A025794 A025795

KEYWORD

nonn

AUTHOR

N. J. A. Sloane.

STATUS

approved