Triangle read by rows: T(n, k) = n*binomial(n, k)*A000757(k), 0 <= k <= n.

Terms

a(0) =0a(1) =1a(2) =0a(3) =2a(4) =0a(5) =0a(6) =3a(7) =0a(8) =0a(9) =3a(10) =4a(11) =0a(12) =0a(13) =16a(14) =4a(15) =5a(16) =0a(17) =0a(18) =50a(19) =25a(20) =40a(21) =6a(22) =0a(23) =0a(24) =120a(25) =90a(26) =288a(27) =216a(28) =7a(29) =0