A256215 Triangle read by rows: T(n,k) = (n-1)!*n^(k-1)*binomial(n,k)/(k-1)!.

1, 2, 2, 6, 18, 9, 24, 144, 192, 64, 120, 1200, 3000, 2500, 625, 720, 10800, 43200, 64800, 38880, 7776, 5040, 105840, 617400, 1440600, 1512630, 705894, 117649

Offset

1,2

Links

Table of n, a(n) for n=1..28.

I. Mezo, A. Baricz, On the generalization of the Lambert W function with applications in theoretical physics, arXiv preprint arXiv:1408.3999, 2014

Mathematica

Table[(n-1)! n^(k-1) Binomial[n, k]/(k-1)!, {n, 10}, {k, n}]//Flatten (* Harvey P. Dale, Apr 09 2023 *)

Crossrefs

Row sums = A052885.

Sequence in context: A019575 A178882 A186195 * A253284 A176754 A365103

Adjacent sequences: A256212 A256213 A256214 * A256216 A256217 A256218

Keyword

nonn,tabl

Author

N. J. A. Sloane, Mar 26 2015

Status

approved