Antidiagonal sums of A306024.

Terms

a(0) =1a(1) =1a(2) =2a(3) =5a(4) =16a(5) =66a(6) =343a(7) =2180a(8) =16505a(9) =145773a(10) =1477880a(11) =16986349a(12) =219158316a(13) =3147962668a(14) =49982588535a(15) =871766923048