Expansion of Product_{k>=0} (1+x^(4*k+1))^4.

Terms

a(0) =1a(1) =4a(2) =6a(3) =4a(4) =1a(5) =4a(6) =16a(7) =24a(8) =16a(9) =8a(10) =22a(11) =48a(12) =52a(13) =32a(14) =38a(15) =92a(16) =128a(17) =96a(18) =70a(19) =140a(20) =245a(21) =244a(22) =172a(23) =228a(24) =417a(25) =488a(26) =374a(27) =380a(28) =680a(29) =924