OFFSET
0,6
LINKS
Eric Weisstein's World of Mathematics, Mock Theta Function
FORMULA
G.f.: 1/nu(q) where nu(q) is the '3rd order' mock theta function defined by Sum_{n >= 0} q^(n(n+1))/((1+q)(1+q^3)...(1+q^(2n+1))).
a(n) = (-1)^n*A291200(n). - R. J. Mathar, May 16 2024
EXAMPLE
G.f. = 1 + x - x^2 - x^3 + x^4 + 2*x^5 - x^6 - 4*x^7 + 6*x^9 + ...
CROSSREFS
KEYWORD
sign
AUTHOR
Seiichi Manyama, Aug 20 2017
STATUS
approved