Antidiagonal sums of table A127054.

Terms

a(0) =1a(1) =2a(2) =4a(3) =9a(4) =25a(5) =89a(6) =403a(7) =2246a(8) =14887a(9) =114239a(10) =994909a(11) =9687123a(12) =104223700a(13) =1227484193a(14) =15703071262a(15) =216798771109