Antidiagonal sums of square table A322190.

Terms

a(0) =1a(1) =2a(2) =3a(3) =6a(4) =15a(5) =46a(6) =168a(7) =710a(8) =3405a(9) =18270a(10) =108438a(11) =705334a(12) =4989075a(13) =38126414a(14) =313034088a(15) =2748039078a(16) =25685633625a(17) =254672239678