OFFSET
0,2
LINKS
Andrew Howroyd, Table of n, a(n) for n = 0..500
FORMULA
a(n) = [x^(n^2)] (1 + theta_3(x))^7/(128*(1 - x)), where theta_3() is the Jacobi theta function. - Ilya Gutkovskiy, Apr 15 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
STATUS
approved