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

Terms

a(0) =1a(1) =1a(2) =3a(3) =6a(4) =16a(5) =35a(6) =85a(7) =195a(8) =465a(9) =1081a(10) =2549a(11) =5962a(12) =14016a(13) =32847a(14) =77119a(15) =180866a(16) =424466a(17) =995753a(18) =2336497a(19) =5481712a(20) =12861904a(21) =30176671a(22) =70802913a(23) =166120289a(24) =389761751a(25) =914476925a(26) =2145596677a(27) =5034105820a(28) =11811287658a(29) =27712248159