A319312 - cp's OEIS frontend

A319312 Number of series-reduced rooted trees whose leaves are integer partitions whose multiset union is an integer partition of n.

n	a(n)
1	1
2	3
3	7
4	22
5	67
6	242
7	885
8	3456
9	13761
10	56342
11	234269
12	989335
13	4225341
14	18231145
15	79321931
16	347676128
17	1533613723
18	6803017863
19	30328303589
20	135808891308
21	610582497919
22	2755053631909
23	12472134557093
24	56630659451541
25	257841726747551
26	1176927093597201

[1, 3, 7, 22, 67, 242, 885, 3456, 13761, 56342, 234269, 989335, 4225341, 18231145, 79321931, 347676128, 1533613723, 6803017863, 30328303589, 135808891308, 610582497919, 2755053631909, 12472134557093, 56630659451541, 257841726747551, 1176927093597201]

cp's OEIS Frontend

A319312 Number of series-reduced rooted trees whose leaves are integer partitions whose multiset union is an integer partition of n.

Table of values

List of values