Antidiagonal sums of the convolution array A213765.

Terms

a(0) =1a(1) =5a(2) =17a(3) =47a(4) =114a(5) =254a(6) =533a(7) =1071a(8) =2083a(9) =3951a(10) =7348a(11) =13452a(12) =24313a(13) =43481a(14) =77077a(15) =135615a(16) =237094a(17) =412234a(18) =713325a(19) =1229155a(20) =2110151a(21) =3610655a(22) =6159912a(23) =10481112a(24) =17790769a(25) =30132269a(26) =50933273a(27) =85936271a(28) =144750618a(29) =243438806