Inverse binomial transform of A083589.

Terms

a(0) =1a(1) =3a(2) =9a(3) =27a(4) =82a(5) =242a(6) =736a(7) =2188a(8) =6600a(9) =19736a(10) =59328a(11) =177744a(12) =533728a(13) =1600160a(14) =4802560a(15) =14403520a(16) =43218816a(17) =129640064a(18) =388952832a(19) =1166793216a(20) =3500510464a(21) =10501269248a(22) =31504332544a(23) =94511948032a(24) =283537942272a(25) =850609632512