A192012 - cp's OEIS frontend

A192012 Number of ways to use the elements of set {1,..,k}, 0<=k<=3*n, once each to form a collection of n (possibly empty) sets, each with at most 3 elements.

n	a(n)
0	1
1	4
2	35
3	877
4	46173
5	4108044
6	550917287
7	103674052788
8	26046619272535
9	8420151470990221
10	3404266960229749907
11	1682802564587905472500
12	998472258682783813839141
13	700281698972322460184258208
14	573086115189070229131370358179
15	541208343386984031504989621465925

[1, 4, 35, 877, 46173, 4108044, 550917287, 103674052788, 26046619272535, 8420151470990221, 3404266960229749907, 1682802564587905472500, 998472258682783813839141, 700281698972322460184258208, 573086115189070229131370358179, 541208343386984031504989621465925]

cp's OEIS Frontend

A192012 Number of ways to use the elements of set {1,..,k}, 0<=k<=3*n, once each to form a collection of n (possibly empty) sets, each with at most 3 elements.

Table of values

List of values