Antidiagonal sums of A354967.

Terms

a(0) =1a(1) =4a(2) =9a(3) =19a(4) =45a(5) =127a(6) =491a(7) =2597a(8) =18905a(9) =180253a(10) =2176101a(11) =32236029a(12) =571516361a(13) =11885151437a(14) =285237145381