OFFSET
0,7
COMMENTS
Number of partitions of n into parts 2, 6, 7, and 9. - 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 (0,1,0,0,0,1,1,-1,0,0,-1,0,-1,0,0,-1,1,1,0,0,0,1,0,-1).
MATHEMATICA
CoefficientList[Series[1/((1 - x^2) (1 - x^6) (1 - x^7) (1 - x^9)), {x, 0, 100}], x] (* Vincenzo Librandi, Jun 02 2014 *)
LinearRecurrence[{0, 1, 0, 0, 0, 1, 1, -1, 0, 0, -1, 0, -1, 0, 0, -1, 1, 1, 0, 0, 0, 1, 0, -1}, {1, 0, 1, 0, 1, 0, 2, 1, 2, 2, 2, 2, 3, 3, 4, 4, 5, 4, 7, 5, 8, 7, 9, 8}, 100] (* Harvey P. Dale, Jul 20 2023 *)
PROG
(PARI) Vec(1/((1-x^2)*(1-x^6)*(1-x^7)*(1-x^9)) + O(x^80)) \\ Jinyuan Wang, Mar 15 2020
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved