A320178 - cp's OEIS frontend

A320178 Number of series-reduced rooted identity trees whose leaves are constant integer partitions whose multiset union is an integer partition of n.

n	a(n)
1	1
2	2
3	4
4	8
5	19
6	53
7	151
8	459
9	1445
10	4634
11	15154
12	50253
13	168607
14	571212
15	1951588
16	6715575
17	23255444
18	80978697
19	283373024
20	995995996
21	3514614634
22	12446666967
23	44222390525
24	157587392768
25	563096832839
26	2017121728223
27	7242436444030
28	26059512879605
29	93952946906117

[1, 2, 4, 8, 19, 53, 151, 459, 1445, 4634, 15154, 50253, 168607, 571212, 1951588, 6715575, 23255444, 80978697, 283373024, 995995996, 3514614634, 12446666967, 44222390525, 157587392768, 563096832839, 2017121728223, 7242436444030, 26059512879605, 93952946906117]

cp's OEIS Frontend

A320178 Number of series-reduced rooted identity trees whose leaves are constant integer partitions whose multiset union is an integer partition of n.

Table of values

List of values