Triangle read by rows: T(n, k) = binomial(n, k - 1) * (k - 1)^(k - 1) * (n - k) * (n - k + 1)^(n - k) / 2.

A368982

Triangle read by rows: T(n, k) = binomial(n, k - 1) * (k - 1)^(k - 1) * (n - k) * (n - k + 1)^(n - k) / 2.

Terms

    a(0) =0a(1) =0a(2) =0a(3) =0a(4) =1a(5) =0a(6) =0a(7) =9a(8) =3a(9) =0a(10) =0a(11) =96a(12) =36a(13) =24a(14) =0a(15) =0a(16) =1250a(17) =480a(18) =360a(19) =270a(20) =0a(21) =0a(22) =19440a(23) =7500a(24) =5760a(25) =4860a(26) =3840a(27) =0a(28) =0a(29) =352947

External references