Expansion of Product_{k>=1} (1 + k^2*x^(k^2)).

Terms

a(0) =1a(1) =1a(2) =0a(3) =0a(4) =4a(5) =4a(6) =0a(7) =0a(8) =0a(9) =9a(10) =9a(11) =0a(12) =0a(13) =36a(14) =36a(15) =0a(16) =16a(17) =16a(18) =0a(19) =0a(20) =64a(21) =64a(22) =0a(23) =0a(24) =0a(25) =169a(26) =169a(27) =0a(28) =0a(29) =676