A029018 Expansion of 1/((1-x)(1-x^2)(1-x^6)(1-x^9)).

1, 1, 2, 2, 3, 3, 5, 5, 7, 8, 10, 11, 14, 15, 18, 20, 23, 25, 30, 32, 37, 40, 45, 48, 55, 58, 65, 70, 77, 82, 91, 96, 105, 112, 121, 128, 140, 147, 159, 168, 180, 189, 204, 213, 228, 240, 255, 267, 285, 297, 315, 330

Offset

0,3

Comments

Number of partitions of n into parts 1, 2, 6 and 9. - Ilya Gutkovskiy, May 14 2017

Links

Table of n, a(n) for n=0..51.

Index entries for linear recurrences with constant coefficients, signature (1,1,-1,0,0,1,-1,-1,2,-1,-1,1,0,0,-1,1,1,-1).

Mathematica

CoefficientList[Series[1/((1-x)(1-x^2)(1-x^6)(1-x^9)), {x, 0, 80}], x] (* Harvey P. Dale, Jan 15 2021 *)

Crossrefs

Sequence in context: A240870 A265771 A239513 * A238217 A185226 A096765

Adjacent sequences: A029015 A029016 A029017 * A029019 A029020 A029021

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved