A320295 - cp's OEIS frontend

A320295 Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n.

n	a(n)
1	0
2	1
3	2
4	5
5	8
6	19
7	34
8	80
9	165
10	394
11	892
12	2192
13	5232
14	13057
15	32271
16	81568
17	205748
18	525735
19	1344828
20	3467415
21	8960849
22	23280323
23	60639680
24	158559047
25	415631368
26	1092734050
27	2879420753
28	7605713020
29	20130266302
30	53386744298
31	141836904569
32	377479973474
33	1006189769886

[0, 1, 2, 5, 8, 19, 34, 80, 165, 394, 892, 2192, 5232, 13057, 32271, 81568, 205748, 525735, 1344828, 3467415, 8960849, 23280323, 60639680, 158559047, 415631368, 1092734050, 2879420753, 7605713020, 20130266302, 53386744298, 141836904569, 377479973474, 1006189769886]

cp's OEIS Frontend

A320295 Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n.

Table of values

List of values