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

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =2a(5) =0a(6) =5a(7) =0a(8) =7a(9) =3a(10) =17a(11) =0a(12) =37a(13) =6a(14) =58a(15) =23a(16) =120a(17) =21a(18) =235a(19) =67a(20) =390a(21) =161a(22) =726a(23) =230a(24) =1349a(25) =521a(26) =2225a(27) =1055a(28) =3990a(29) =1714