A080299 - cp's OEIS frontend

A080299 A014486-encoding of plane binary trees (Stanley's d) whose interior zigzag-tree (Stanley's c, i.e., tree obtained by discarding the outermost edges of the binary tree) is isomorphic to a valid plane binary tree (Stanley's d).

n	a(n)
0	2
1	50
2	818
3	914
4	13106
5	13202
6	14642
7	14738
8	15506
9	209714
10	209810
11	211250
12	211346
13	212114
14	234290
15	234386
16	235826
17	235922
18	236690
19	248114
20	248210
21	248978
22	255122
23	3355442
24	3355538
25	3356978
26	3357074
27	3357842
28	3380018
29	3380114
30	3381554

[2, 50, 818, 914, 13106, 13202, 14642, 14738, 15506, 209714, 209810, 211250, 211346, 212114, 234290, 234386, 235826, 235922, 236690, 248114, 248210, 248978, 255122, 3355442, 3355538, 3356978, 3357074, 3357842, 3380018, 3380114, 3381554]

cp's OEIS Frontend

A080299 A014486-encoding of plane binary trees (Stanley's d) whose interior zigzag-tree (Stanley's c, i.e., tree obtained by discarding the outermost edges of the binary tree) is isomorphic to a valid plane binary tree (Stanley's d).

Table of values

List of values