A358579 - cp's OEIS frontend

A358579 Numbers k such that the k-th standard ordered rooted tree has the same number of leaves as internal (non-leaf) nodes.

n	a(n)
1	2
2	6
3	7
4	9
5	20
6	22
7	23
8	26
9	27
10	29
11	35
12	41
13	66
14	76
15	78
16	79
17	84
18	86
19	87
20	90
21	91
22	93
23	97
24	102
25	103
26	106
27	107
28	109
29	115
30	117
31	130
32	136
33	138
34	139
35	141
36	146
37	153
38	163
39	169
40	193
41	196
42	197
43	201
44	226
45	241
46	262
47	263
48	296
49	300
50	302
51	303
52	308
53	310
54	311
55	314
56	315
57	317

[2, 6, 7, 9, 20, 22, 23, 26, 27, 29, 35, 41, 66, 76, 78, 79, 84, 86, 87, 90, 91, 93, 97, 102, 103, 106, 107, 109, 115, 117, 130, 136, 138, 139, 141, 146, 153, 163, 169, 193, 196, 197, 201, 226, 241, 262, 263, 296, 300, 302, 303, 308, 310, 311, 314, 315, 317]

cp's OEIS Frontend

A358579 Numbers k such that the k-th standard ordered rooted tree has the same number of leaves as internal (non-leaf) nodes.

Table of values

List of values

n	a(n)
1	2
2	6
3	7
4	9
5	20
6	22
7	23
8	26
9	27
10	29
11	35
12	41
13	66
14	76
15	78
16	79
17	84
18	86
19	87
20	90
21	91
22	93
23	97
24	102
25	103
26	106
27	107
28	109
29	115
30	117
31	130
32	136
33	138
34	139
35	141
36	146
37	153
38	163
39	169
40	193
41	196
42	197
43	201
44	226
45	241
46	262
47	263
48	296
49	300
50	302
51	303
52	308
53	310
54	311
55	314
56	315
57	317

n	a(n)
1	2
2	6
3	7
4	9
5	20
6	22
7	23
8	26
9	27
10	29
11	35
12	41
13	66
14	76
15	78
16	79
17	84
18	86
19	87
20	90
21	91
22	93
23	97
24	102
25	103
26	106
27	107
28	109
29	115
30	117
31	130
32	136
33	138
34	139
35	141
36	146
37	153
38	163
39	169
40	193
41	196
42	197
43	201
44	226
45	241
46	262
47	263
48	296
49	300
50	302
51	303
52	308
53	310
54	311
55	314
56	315
57	317

n	a(n)
1	2
2	6
3	7
4	9
5	20
6	22
7	23
8	26
9	27
10	29
11	35
12	41
13	66
14	76
15	78
16	79
17	84
18	86
19	87
20	90
21	91
22	93
23	97
24	102
25	103
26	106
27	107
28	109
29	115
30	117
31	130
32	136
33	138
34	139
35	141
36	146
37	153
38	163
39	169
40	193
41	196
42	197
43	201
44	226
45	241
46	262
47	263
48	296
49	300
50	302
51	303
52	308
53	310
54	311
55	314
56	315
57	317