A292087 - cp's OEIS frontend

A292087 Limit of the number of (unlabeled) rooted trees without unary nodes where n is the difference between the number of leafs and the maximal outdegree as the tree size increases.

n	a(n)
0	1
1	2
2	7
3	23
4	78
5	262
6	893
7	3040
8	10411
9	35724
10	122950
11	424004
12	1465254
13	5071981
14	17584226
15	61046464
16	212197118
17	738422362
18	2572261241
19	8968726829
20	31298189180
21	109307655964
22	382031357974
23	1336107044159
24	4675807680776
25	16372936282017
26	57363325974309

[1, 2, 7, 23, 78, 262, 893, 3040, 10411, 35724, 122950, 424004, 1465254, 5071981, 17584226, 61046464, 212197118, 738422362, 2572261241, 8968726829, 31298189180, 109307655964, 382031357974, 1336107044159, 4675807680776, 16372936282017, 57363325974309]

cp's OEIS Frontend

A292087 Limit of the number of (unlabeled) rooted trees without unary nodes where n is the difference between the number of leafs and the maximal outdegree as the tree size increases.

Table of values

List of values