A327712 - cp's OEIS frontend

A327712 Sum of multinomials M(n-k; p_1-1, ..., p_k-1), where p = (p_1, ..., p_k) ranges over all compositions of n into distinct parts (k is a composition length).

n	a(n)
0	1
1	1
2	1
3	3
4	3
5	9
6	29
7	57
8	135
9	615
10	2635
11	6273
12	25151
13	82623
14	525281
15	2941047
16	9100709
17	38766777
18	205155713
19	902705793
20	7714938567
21	52987356783
22	204844103977
23	1042657233471
24	5520661314689
25	38159472253821
26	211945677298567
27	2404720648663335
28	19773733727088813

[1, 1, 1, 3, 3, 9, 29, 57, 135, 615, 2635, 6273, 25151, 82623, 525281, 2941047, 9100709, 38766777, 205155713, 902705793, 7714938567, 52987356783, 204844103977, 1042657233471, 5520661314689, 38159472253821, 211945677298567, 2404720648663335, 19773733727088813]

cp's OEIS Frontend

A327712 Sum of multinomials M(n-k; p_1-1, ..., p_k-1), where p = (p_1, ..., p_k) ranges over all compositions of n into distinct parts (k is a composition length).

Table of values

List of values