OFFSET
5,1
LINKS
G. A. Kamel, Partial Chain Topologies on Finite Sets, Computational and Applied Mathematics Journal. Vol. 1, No. 4, 2015, pp. 174-179.
EXAMPLE
Triangle begins:
5,
15,30,
35,105,210,
70,280,840,1680,
126,630,2520,7560,15120,
210,1260,6300,25200,75600,151200,
...
MATHEMATICA
i = 4; Table[Table[Binomial[n, i] FactorialPower[n - i, k], {k, 0,
n - i - 1}], {n, 2, 12}] // Grid (* Geoffrey Critzer, Feb 19 2017 *)
CROSSREFS
KEYWORD
AUTHOR
N. J. A. Sloane, Jan 30 2016
EXTENSIONS
Title clarified and more terms added by Geoffrey Critzer, Feb 19 2017
STATUS
approved