A029021 Expansion of 1/((1-x)(1-x^2)(1-x^7)(1-x^9)).

1, 1, 2, 2, 3, 3, 4, 5, 6, 8, 9, 11, 12, 14, 16, 18, 21, 23, 27, 29, 33, 36, 40, 44, 48, 53, 57, 63, 68, 74, 80, 86, 93, 99, 107, 114, 123, 131, 140, 149, 158, 168, 178, 189, 200, 212, 224, 236, 249, 262, 276, 290, 305

Offset

0,3

Comments

Number of partitions of n into parts 1, 2, 7 and 9. - Ilya Gutkovskiy, May 14 2017

Links

Table of n, a(n) for n=0..52.

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

Mathematica

CoefficientList[Series[1/((1-x)(1-x^2)(1-x^7)(1-x^9)), {x, 0, 60}], x] (* Harvey P. Dale, Feb 26 2011 *)

Crossrefs

Sequence in context: A091493 A305148 A058724 * A261770 A096792 A335746

Adjacent sequences: A029018 A029019 A029020 * A029022 A029023 A029024

Keyword

nonn

Author

N. J. A. Sloane.

Status

approved