Expansion of (Sum_{k>=0} x^(k^4))^19.

Terms

a(0) =1a(1) =19a(2) =171a(3) =969a(4) =3876a(5) =11628a(6) =27132a(7) =50388a(8) =75582a(9) =92378a(10) =92378a(11) =75582a(12) =50388a(13) =27132a(14) =11628a(15) =3876a(16) =988a(17) =513a(18) =2926a(19) =15505a(20) =58140a(21) =162792a(22) =352716a(23) =604656a(24) =831402a(25) =923780a(26) =831402a(27) =604656a(28) =352716a(29) =162792