Expansion of Product_{k>=0} (1 + x^(5^k))^(5^(k+1)).

Terms

a(0) =1a(1) =5a(2) =10a(3) =10a(4) =5a(5) =26a(6) =125a(7) =250a(8) =250a(9) =125a(10) =325a(11) =1500a(12) =3000a(13) =3000a(14) =1500a(15) =2600a(16) =11500a(17) =23000a(18) =23000a(19) =11500a(20) =14950a(21) =63250a(22) =126500a(23) =126500a(24) =63250a(25) =65905a(26) =266275a(27) =532550a(28) =532550a(29) =266275