A029222 - OEIS

A029222

Expansion of 1/((1-x^2)*(1-x^6)*(1-x^9)*(1-x^11)).

1, 0, 1, 0, 1, 0, 2, 0, 2, 1, 2, 2, 3, 2, 3, 3, 3, 4, 5, 4, 6, 5, 7, 6, 9, 6, 10, 8, 11, 10, 13, 11, 14, 14, 15, 16, 18, 17, 20, 20, 22, 22, 26, 23, 29, 27, 31, 30, 35, 32, 38, 37, 40, 41, 45, 44, 49, 49, 52, 53, 58, 56, 63, 62

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OFFSET

0,7

COMMENTS

Number of partitions of n into parts 2, 6, 9, and 11. - Joerg Arndt, Jun 02 2014

LINKS

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

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

MATHEMATICA

CoefficientList[Series[1/((1 - x^2) (1 - x^6) (1 - x^9) (1 - x^11)), {x, 0, 100}], x] (* Vincenzo Librandi, Jun 02 2014 *)

PROG

(PARI) Vec(1/((1-x^2)*(1-x^6)*(1-x^9)*(1-x^11)) + O(x^80)) \\ Jinyuan Wang, Mar 15 2020

CROSSREFS

Sequence in context: A330709 A045450 A347419 * A162350 A334305 A125922

Adjacent sequences: A029219 A029220 A029221 * A029223 A029224 A029225

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved