Triangle read by rows: T(n, k) = binomial(n, k - 1)*(k - 1)^(k - 1)*n*(n - k + 1)^(n - k).

Terms

a(0) =0a(1) =0a(2) =1a(3) =0a(4) =4a(5) =4a(6) =0a(7) =27a(8) =18a(9) =36a(10) =0a(11) =256a(12) =144a(13) =192a(14) =432a(15) =0a(16) =3125a(17) =1600a(18) =1800a(19) =2700a(20) =6400a(21) =0a(22) =46656a(23) =22500a(24) =23040a(25) =29160a(26) =46080a(27) =112500a(28) =0a(29) =823543