OFFSET
0,6
LINKS
B. Gordon and R. J. McIntosh, Some eighth order mock theta functions, J. London Math. Soc. 62 (2000), 321-335.
FORMULA
G.f: Sum_{n >= 0} q^((n+1)^2)(1+q)(1+q^3)...(1+q^(2n-1))/((1+q^2)(1+q^6)...(1+q^(4n+2))).
PROG
(PARI) lista(nn) = {my(q = qq + O(qq^nn)); gf = sum(n = 0, nn, q^((n+1)^2) * prod(k = 1, n, 1 + q^(2*k-1)) / prod(k = 0, n, 1 + q^(4*k+2))); for (i=0, nn-1, print1(polcoeff(gf, i), ", "); ); } \\ Michel Marcus, Jun 18 2013
CROSSREFS
KEYWORD
sign
AUTHOR
Jeremy Lovejoy, Dec 20 2008
EXTENSIONS
More terms from Michel Marcus, Feb 23 2015
STATUS
approved