Expansion of Product_{j>=1} (1 - x^j)/(1 - x^(4*j))^4.

Terms

a(0) =1a(1) =-1a(2) =-1a(3) =0a(4) =4a(5) =-3a(6) =-4a(7) =1a(8) =14a(9) =-10a(10) =-14a(11) =4a(12) =39a(13) =-26a(14) =-40a(15) =13a(16) =101a(17) =-65a(18) =-105a(19) =36a(20) =238a(21) =-147a(22) =-251a(23) =91a(24) =534a(25) =-322a(26) =-569a(27) =212a(28) =1135a(29) =-666