A320616 - cp's OEIS frontend

A320616 Number of ordered set partitions of [n] where k = three is minimal such that for each block b the smallest integer interval containing b has at most k elements.

n	a(n)
3	3
4	18
5	118
6	878
7	7224
8	65514
9	652446
10	7092672
11	83679936
12	1065839544
13	14586155400
14	213544496760
15	3331500035160
16	55190744651520
17	967799429431920
18	17911992891306240
19	348981340420308960
20	7140367412382592080
21	153090240159322655280
22	3432492956469166894080

[3, 18, 118, 878, 7224, 65514, 652446, 7092672, 83679936, 1065839544, 14586155400, 213544496760, 3331500035160, 55190744651520, 967799429431920, 17911992891306240, 348981340420308960, 7140367412382592080, 153090240159322655280, 3432492956469166894080]

cp's OEIS Frontend

A320616 Number of ordered set partitions of [n] where k = three is minimal such that for each block b the smallest integer interval containing b has at most k elements.

Table of values

List of values