Binomial transform of A064413.

Terms

a(0) =1a(1) =3a(2) =9a(3) =25a(4) =60a(5) =135a(6) =304a(7) =695a(8) =1589a(9) =3570a(10) =7814a(11) =16673a(12) =34916a(13) =72431a(14) =150090a(15) =312277a(16) =653225a(17) =1371853a(18) =2885625a(19) =6067282a(20) =12738141a(21) =26696785a(22) =55860949a(23) =116712399a(24) =243483514a(25) =507073979a(26) =1053906817a(27) =2185668752a(28) =4523048269