A358591 - cp's OEIS frontend

A358591 Number of 2n-node rooted trees whose height, number of leaves, and number of internal (non-leaf) nodes are all equal.

n	a(n)
1	0
2	0
3	2
4	17
5	94
6	464
7	2162
8	9743
9	42962
10	186584
11	801316
12	3412034
13	14430740
14	60700548
15	254180426
16	1060361147
17	4409342954
18	18285098288
19	75645143516
20	312286595342
21	1286827096964
22	5293833371408
23	21745951533236
24	89208948855542
25	365523293690804
26	1496048600896784

[0, 0, 2, 17, 94, 464, 2162, 9743, 42962, 186584, 801316, 3412034, 14430740, 60700548, 254180426, 1060361147, 4409342954, 18285098288, 75645143516, 312286595342, 1286827096964, 5293833371408, 21745951533236, 89208948855542, 365523293690804, 1496048600896784]

cp's OEIS Frontend

A358591 Number of 2n-node rooted trees whose height, number of leaves, and number of internal (non-leaf) nodes are all equal.

Table of values

List of values