A327702 - cp's OEIS frontend

A327702 Number of refinement sequences n -> ... -> {1}^n, where in each step one part that is the rightmost copy of its size is replaced by a partition of itself into smaller parts (in weakly decreasing order).

n	a(n)
1	1
2	1
3	2
4	5
5	14
6	47
7	174
8	730
9	3300
10	16361
11	85991
12	485982
13	2877194
14	18064663
15	118111993
16	810388956
17	5755059363
18	42643884970
19	325468477721
20	2576976440845
21	20960795772211
22	176056148076418
23	1514733658531058
24	13418942409623726
25	121442280888373117
26	1128425823360525506

[1, 1, 2, 5, 14, 47, 174, 730, 3300, 16361, 85991, 485982, 2877194, 18064663, 118111993, 810388956, 5755059363, 42643884970, 325468477721, 2576976440845, 20960795772211, 176056148076418, 1514733658531058, 13418942409623726, 121442280888373117, 1128425823360525506]

cp's OEIS Frontend

A327702 Number of refinement sequences n -> ... -> {1}^n, where in each step one part that is the rightmost copy of its size is replaced by a partition of itself into smaller parts (in weakly decreasing order).

Table of values

List of values