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) =23a(6) =47a(7) =83a(8) =154a(9) =269a(10) =474a(11) =809a(12) =1387a(13) =2313a(14) =3859a(15) =6330a(16) =10341a(17) =16680a(18) =26790a(19) =42586a(20) =67375a(21) =105731a(22) =165097a(23) =256052a(24) =395248a(25) =606501a(26) =926502a(27) =1408048a(28) =2130788a(29) =3209643