A318399 - cp's OEIS frontend

A318399 Number of triples of set partitions of {1,...,n} with meet {{1},...,{n}} and join {{1,...,n}}.

n	a(n)
1	1
2	6
3	84
4	2226
5	93246
6	5616492
7	459173406
8	48933260388
9	6595445513412
10	1098326915060730
11	221772386369110242
12	53460963703982862534
13	15185890964240671486740
14	5026315912246843181692776
15	1919721040169845172603949966
16	838872819016448052585038291124

[1, 6, 84, 2226, 93246, 5616492, 459173406, 48933260388, 6595445513412, 1098326915060730, 221772386369110242, 53460963703982862534, 15185890964240671486740, 5026315912246843181692776, 1919721040169845172603949966, 838872819016448052585038291124]

cp's OEIS Frontend

A318399 Number of triples of set partitions of {1,...,n} with meet {{1},...,{n}} and join {{1,...,n}}.

Table of values

List of values