OFFSET
2,2
LINKS
Index entries for linear recurrences with constant coefficients, signature (3,-3,1,0,1,-3,3,-1)
FORMULA
G.f.: [(2-2x+x^2)(1+x^2)x^3]/[(1-x)^3(1-x^5)].
MATHEMATICA
LinearRecurrence[{3, -3, 1, 0, 1, -3, 3, -1}, {0, 2, 4, 9, 15, 23, 35, 49}, 60] (* Harvey P. Dale, Jun 09 2018 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved