OFFSET
0,7
LINKS
Index entries for linear recurrences with constant coefficients, signature (0,1,1,0,-1,1,0,-1,-1,0,1,1,0,-1,-1,0,1,-1,0,1,1,0,-1).
MATHEMATICA
CoefficientList[Series[1/((1-x^2)(1-x^3)(1-x^6)(1-x^12)), {x, 0, 100}], x] (* Jinyuan Wang, Mar 18 2020 *)
LinearRecurrence[{0, 1, 1, 0, -1, 1, 0, -1, -1, 0, 1, 1, 0, -1, -1, 0, 1, -1, 0, 1, 1, 0, -1}, {1, 0, 1, 1, 1, 1, 3, 1, 3, 3, 3, 3, 7, 3, 7, 7, 7, 7, 13, 7, 13, 13, 13}, 60] (* Harvey P. Dale, Jul 18 2023 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved