Expansion of (Product_{k>0} (1 - x^(5*k)) / (1 - x^k))^5 in powers of x.

Terms

a(0) =1a(1) =5a(2) =20a(3) =65a(4) =190a(5) =501a(6) =1240a(7) =2890a(8) =6440a(9) =13775a(10) =28502a(11) =57205a(12) =111880a(13) =213670a(14) =399620a(15) =733128a(16) =1321850a(17) =2345340a(18) =4100700a(19) =7072520a(20) =12045005a(21) =20272465a(22) =33746060a(23) =55595635a(24) =90706390a(25) =146638756a(26) =235016940a(27) =373580735a(28) =589238640a(29) =922537655