OFFSET
0,7
COMMENTS
Number of partitions of n into parts 2, 3, and 9. - Stefano Spezia, Mar 30 2023
LINKS
Andrew Howroyd, Table of n, a(n) for n = 0..10000
Index entries for linear recurrences with constant coefficients, signature (0,1,1,0,-1,0,0,0,1,0,-1,-1,0,1).
MATHEMATICA
CoefficientList[Series[1/((1 - x^2) (1 - x^3) (1 - x^9)), {x, 0, 100}], x] (* Wesley Ivan Hurt, Jan 20 2017 *)
LinearRecurrence[{0, 1, 1, 0, -1, 0, 0, 0, 1, 0, -1, -1, 0, 1}, {1, 0, 1, 1, 1, 1, 2, 1, 2, 3, 2, 3, 4, 3}, 70] (* Harvey P. Dale, Sep 20 2021 *)
PROG
(PARI) Vec(1/((1-x^2)*(1-x^3)*(1-x^9)) + O(x^81)) \\ Andrew Howroyd, Mar 30 2023
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
EXTENSIONS
More terms from Stefano Spezia, Mar 30 2023
STATUS
approved