Triangle read by rows, T(n,k) = sum(j=0..2*(n-k), A254882(n-k,j)*k^j /(n-k)!), n>=0, 0<=k<=n.

Terms

a(0) =1a(1) =0a(2) =1a(3) =0a(4) =1a(5) =1a(6) =0a(7) =2a(8) =2a(9) =1a(10) =0a(11) =6a(12) =9a(13) =3a(14) =1a(15) =0a(16) =24a(17) =48a(18) =24a(19) =4a(20) =1a(21) =0a(22) =120a(23) =300a(24) =200a(25) =50a(26) =5a(27) =1a(28) =0a(29) =720