Binomial transform of A156616.

Terms

a(0) =1a(1) =3a(2) =11a(3) =41a(4) =147a(5) =509a(6) =1717a(7) =5671a(8) =18395a(9) =58735a(10) =184961a(11) =575337a(12) =1769981a(13) =5390997a(14) =16270587a(15) =48696299a(16) =144620059a(17) =426428645a(18) =1249007767a(19) =3635595953a(20) =10520770265a(21) =30278391475a(22) =86689798089a(23) =246988386691a(24) =700439171501