A320294 - cp's OEIS frontend

A320294 Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n with no 1's.

n	a(n)
1	0
2	0
3	0
4	1
5	1
6	3
7	3
8	7
9	8
10	15
11	19
12	37
13	48
14	87
15	126
16	227
17	342
18	611
19	964
20	1719
21	2806
22	4975
23	8327
24	14782
25	25157
26	44609
27	76972
28	136622
29	237987
30	422881
31	742149
32	1320825
33	2331491
34	4156392
35	7370868
36	13164429
37	23433637
38	41928557
39	74871434
40	134203411
41	240284935
42	431437069

[0, 0, 0, 1, 1, 3, 3, 7, 8, 15, 19, 37, 48, 87, 126, 227, 342, 611, 964, 1719, 2806, 4975, 8327, 14782, 25157, 44609, 76972, 136622, 237987, 422881, 742149, 1320825, 2331491, 4156392, 7370868, 13164429, 23433637, 41928557, 74871434, 134203411, 240284935, 431437069]

cp's OEIS Frontend

A320294 Number of series-reduced rooted trees whose leaves are non-singleton integer partitions whose multiset union is an integer partition of n with no 1's.

Table of values

List of values