OFFSET
2,2
LINKS
William A. Stein, Dimensions of the spaces S_k^{new}(Gamma_1(N))
William A. Stein, The modular forms database
Index entries for linear recurrences with constant coefficients, signature (0, 0, 0, 1, 0, 1, 0, 0, 0, -1).
FORMULA
From Colin Barker, Feb 24 2016: (Start)
a(n) = a(n-4) + a(n-6) - a(n-10) for n>13.
G.f.: -x^2*(1 -5*x -16*x^2 -28*x^3 -41*x^4 -47*x^5 -49*x^6 -43*x^7 -32*x^8 -20*x^9 -7*x^10 +x^11) / ((1 -x)^2*(1 +x)^2*(1 -x +x^2)*(1 +x^2)*(1 +x +x^2)).
(End)
CROSSREFS
KEYWORD
sign,changed
AUTHOR
N. J. A. Sloane, Jul 14 2001
STATUS
approved