Numerators in expansion of Euler transform of b(n) = 1/2.

Terms

a(0) =1a(1) =1a(2) =7a(3) =17a(4) =203a(5) =455a(6) =2723a(7) =6001a(8) =133107a(9) =312011a(10) =1613529a(11) =3705303a(12) =39159519a(13) =88466147a(14) =443939867a(15) =1041952049a(16) =40842931395a(17) =93889422323a(18) =460998957853