OFFSET
0,3
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..1000
Eiichi Bannai and Michio Ozeki, Construction of Jacobi forms from certain combinatorial polynomials, Proc. Japan Acad. A72 12-15 1996.
G. C. Shephard and J. A. Todd, Finite unitary reflection groups, Canadian J. Math. 6, (1954), 274--304. MR0059914 (15,600b)
Index entries for linear recurrences with constant coefficients, signature (0,2,2,-1,-4,-1,2,2,0,-1).
FORMULA
a(n) ~ 4/9*n^3. - Ralf Stephan, Apr 29 2014
MAPLE
(1+8*x^2+18*x^3+21*x^4+19*x^5+21*x^6+7*x^7+x^8)/(1-x^2)^2/(1-x^3)^2;
MATHEMATICA
CoefficientList[Series[(1 + 8 x^2 + 18 x^3 + 21 x^4 + 19 x^5 + 21 x^6 + 7 x^7 + x^8) / (1 - x^2)^2 / (1 - x^3)^2, {x, 0, 60}], x] (* Vincenzo Librandi, Aug 15 2013 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
STATUS
approved