A168583 - cp's OEIS frontend

A168583 The number of ways of partitioning the multiset {1,1,2,3,...,n-1} into exactly three nonempty parts.

n	a(n)
3	1
4	4
5	16
6	58
7	196
8	634
9	1996
10	6178
11	18916
12	57514
13	174076
14	525298
15	1582036
16	4758394
17	14299756
18	42948418
19	128943556
20	387027274
21	1161475036
22	3485211538
23	10457207476
24	31374768154
25	94130595916
26	282404370658
27	847238277796
28	2541765165034
29	7625396158396

[1, 4, 16, 58, 196, 634, 1996, 6178, 18916, 57514, 174076, 525298, 1582036, 4758394, 14299756, 42948418, 128943556, 387027274, 1161475036, 3485211538, 10457207476, 31374768154, 94130595916, 282404370658, 847238277796, 2541765165034, 7625396158396]

cp's OEIS Frontend

A168583 The number of ways of partitioning the multiset {1,1,2,3,...,n-1} into exactly three nonempty parts.

Table of values

List of values