Expansion of Product_{k>=1} ((1 - k*x^k) / (1 - 2*x^k)).

Terms

a(0) =1a(1) =1a(2) =2a(3) =3a(4) =5a(5) =9a(6) =15a(7) =33a(8) =62a(9) =130a(10) =264a(11) =554a(12) =1081a(13) =2237a(14) =4483a(15) =8952a(16) =17933a(17) =35921a(18) =71755a(19) =143502a(20) =286713a(21) =573198a(22) =1146540a(23) =2292277a(24) =4584087a(25) =9166802a(26) =18334880a(27) =36668210a(28) =73336840a(29) =146672469