Antidiagonal sums of the convolution array A213573.

Terms

a(0) =1a(1) =10a(2) =47a(3) =158a(4) =441a(5) =1098a(6) =2539a(7) =5590a(8) =11909a(9) =24818a(10) =50967a(11) =103662a(12) =209521a(13) =421786a(14) =846947a(15) =1697990a(16) =3400893a(17) =6807618a(18) =13622095a(19) =27252190a(20) =54513641a(21) =109037930a(22) =218088027a(23) =436189878a(24) =872395381a(25) =1744808338a(26) =3489636359