OFFSET
4,1
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:
4,
10,20,
20,60,120,
35,140,420,840,
56,280,1120,3360,6720,
84,504,2520,10080,30240,60480,
120,840,5040,25200,100800,302400,604800,
...
MATHEMATICA
i = 3; 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