Expansion of Sum_{i>=0} x^(2^i) / (1 - Sum_{j>=0} x^(2^j))^2.

Terms

a(0) =1a(1) =3a(2) =7a(3) =16a(4) =34a(5) =71a(6) =143a(7) =286a(8) =562a(9) =1096a(10) =2114a(11) =4054a(12) =7720a(13) =14631a(14) =27591a(15) =51834a(16) =97018a(17) =181030a(18) =336810a(19) =625062a(20) =1157288a(21) =2138200a(22) =3942858a(23) =7257830a(24) =13338024a(25) =24474978a(26) =44848232a(27) =82073852a(28) =150016328a(29) =273893503