Expansion of Product_{k>=1} ((1 + x^(5*k)) / (1 - x^k))^k.

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =13a(5) =25a(6) =49a(7) =89a(8) =166a(9) =295a(10) =526a(11) =909a(12) =1571a(13) =2657a(14) =4475a(15) =7432a(16) =12257a(17) =20000a(18) =32436a(19) =52126a(20) =83285a(21) =132057a(22) =208221a(23) =326202a(24) =508372a(25) =787777a(26) =1214828a(27) =1863932a(28) =2847020a(29) =4328765