OFFSET
0,6
EXAMPLE
Triangle T(n, k) starts:
[0] 1;
[1] 0;
[2] 0, 1;
[3] 0, 2;
[4] 0, 3, 6;
[5] 0, 4, 36;
[6] 0, 5, 140, 60;
[7] 0, 6, 450, 720;
[8] 0, 7, 1302, 5250, 840;
[9] 0, 8, 3528, 30240, 16800;
MAPLE
T := (n, k) -> pochhammer(n - k, k) * Stirling2(n - k, k):
seq(seq(T(n, k), k = 0..iquo(n, 2)), n = 0..12);
PROG
CROSSREFS
KEYWORD
nonn,tabf
AUTHOR
Peter Luschny, May 04 2023
STATUS
approved