OFFSET
0,6
EXAMPLE
Triangle starts:
[0] [0]
[1] [0, 0]
[2] [0, 1, 2]
[3] [0, 4, 6, 18]
[4] [0, 32, 36, 72, 216]
[5] [0, 312, 320, 540, 1080, 3200]
[6] [0, 3888, 3750, 5760, 9720, 19200, 56250]
[7] [0, 58824, 54432, 78750, 120960, 201600, 393750, 1143072]
MATHEMATICA
A369025[n_, k_] := Floor[Binomial[n, k-1] If[k == 1, 1, (k-1)^(k-1)] k (n-k+1)^(n-k) / 2];
Table[A369025[n, k], {n, 0, 10}, {k, 0, n}] (* Paolo Xausa, Jan 12 2024 *)
PROG
CROSSREFS
KEYWORD
nonn,tabl
AUTHOR
Peter Luschny, Jan 12 2024
STATUS
approved