Array A(n, k) = n^k * k^n, n, k >= 0, read by antidiagonals.

Terms

a(0) =1a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =2a(8) =2a(9) =0a(10) =0a(11) =3a(12) =16a(13) =3a(14) =0a(15) =0a(16) =4a(17) =72a(18) =72a(19) =4a(20) =0a(21) =0a(22) =5a(23) =256a(24) =729a(25) =256a(26) =5a(27) =0a(28) =0a(29) =6