A111299 - cp's OEIS frontend

A111299 Numbers whose Matula tree is a binary tree (i.e., root has degree 2 and all nodes except root and leaves have degree 3).

n	a(n)
1	4
2	14
3	49
4	86
5	301
6	454
7	886
8	1589
9	1849
10	3101
11	3986
12	6418
13	9761
14	13766
15	13951
16	19049
17	22463
18	26798
19	31754
20	48181
21	51529
22	57026
23	75266
24	85699
25	93793
26	100561
27	111139
28	128074
29	137987
30	196249
31	199591
32	203878
33	263431
34	295969
35	298154
36	302426
37	426058
38	448259
39	452411

[4, 14, 49, 86, 301, 454, 886, 1589, 1849, 3101, 3986, 6418, 9761, 13766, 13951, 19049, 22463, 26798, 31754, 48181, 51529, 57026, 75266, 85699, 93793, 100561, 111139, 128074, 137987, 196249, 199591, 203878, 263431, 295969, 298154, 302426, 426058, 448259, 452411]

cp's OEIS Frontend

A111299 Numbers whose Matula tree is a binary tree (i.e., root has degree 2 and all nodes except root and leaves have degree 3).

Table of values

List of values