Expansion of Sum_{k>0} (x * (1 + (2 * x)^k))^k.

Terms

a(0) =1a(1) =3a(2) =1a(3) =9a(4) =1a(5) =41a(6) =1a(7) =65a(8) =193a(9) =161a(10) =1a(11) =2433a(12) =1a(13) =897a(14) =10241a(15) =18433a(16) =1a(17) =66049a(18) =1a(19) =403457a(20) =344065a(21) =22529a(22) =1a(23) =7127041a(24) =5242881a(25) =106497a(26) =9437185a(27) =73629697a(28) =1a(29) =332890113