OFFSET
0,2
LINKS
Seiichi Manyama, Table of n, a(n) for n = 0..10000
Eric Weisstein's World of Mathematics, Sum of Squares Function
Eric Weisstein's World of Mathematics, Jacobi Theta Functions
FORMULA
G.f.: (1 + 2 * Sum_{k>=1} q^(k^2))^32.
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Apr 14 2018
STATUS
approved