Binomial transform of A001113.

Terms

a(0) =2a(1) =9a(2) =17a(3) =34a(4) =70a(5) =145a(6) =298a(7) =605a(8) =1216a(9) =2431a(10) =4857a(11) =9731a(12) =19581a(13) =39574a(14) =80249a(15) =162998a(16) =330900a(17) =669822a(18) =1349018a(19) =2698613a(20) =5356954a(21) =10550998a(22) =20632043a(23) =40106168a(24) =77632269a(25) =149928441a(26) =289466030a(27) =559712841a(28) =1085460535a(29) =2113347950