A080980 - cp's OEIS frontend

A080980 A014486-indices of the trees whose interior zigzag-tree (Stanley's c) is branch-reduced (in the sense defined by Donaghey).

n	a(n)
0	0
1	1
2	2
3	3
4	5
5	6
6	7
7	11
8	12
9	15
10	16
11	18
12	20
13	29
14	30
15	32
16	34
17	39
18	40
19	43
20	47
21	48
22	49
23	53
24	55
25	57
26	81
27	82
28	85
29	89
30	90
31	91
32	95
33	97
34	99
35	113
36	114
37	116
38	118
39	123
40	124
41	136
42	137
43	139
44	140
45	141
46	143
47	146
48	155
49	159
50	160
51	161
52	165
53	167
54	173
55	183
56	245
57	246
58	248
59	250
60	255
61	256
62	268

[0, 1, 2, 3, 5, 6, 7, 11, 12, 15, 16, 18, 20, 29, 30, 32, 34, 39, 40, 43, 47, 48, 49, 53, 55, 57, 81, 82, 85, 89, 90, 91, 95, 97, 99, 113, 114, 116, 118, 123, 124, 136, 137, 139, 140, 141, 143, 146, 155, 159, 160, 161, 165, 167, 173, 183, 245, 246, 248, 250, 255, 256, 268]

cp's OEIS Frontend

A080980 A014486-indices of the trees whose interior zigzag-tree (Stanley's c) is branch-reduced (in the sense defined by Donaghey).

Table of values

List of values

n	a(n)
0	0
1	1
2	2
3	3
4	5
5	6
6	7
7	11
8	12
9	15
10	16
11	18
12	20
13	29
14	30
15	32
16	34
17	39
18	40
19	43
20	47
21	48
22	49
23	53
24	55
25	57
26	81
27	82
28	85
29	89
30	90
31	91
32	95
33	97
34	99
35	113
36	114
37	116
38	118
39	123
40	124
41	136
42	137
43	139
44	140
45	141
46	143
47	146
48	155
49	159
50	160
51	161
52	165
53	167
54	173
55	183
56	245
57	246
58	248
59	250
60	255
61	256
62	268

n	a(n)
0	0
1	1
2	2
3	3
4	5
5	6
6	7
7	11
8	12
9	15
10	16
11	18
12	20
13	29
14	30
15	32
16	34
17	39
18	40
19	43
20	47
21	48
22	49
23	53
24	55
25	57
26	81
27	82
28	85
29	89
30	90
31	91
32	95
33	97
34	99
35	113
36	114
37	116
38	118
39	123
40	124
41	136
42	137
43	139
44	140
45	141
46	143
47	146
48	155
49	159
50	160
51	161
52	165
53	167
54	173
55	183
56	245
57	246
58	248
59	250
60	255
61	256
62	268

n	a(n)
0	0
1	1
2	2
3	3
4	5
5	6
6	7
7	11
8	12
9	15
10	16
11	18
12	20
13	29
14	30
15	32
16	34
17	39
18	40
19	43
20	47
21	48
22	49
23	53
24	55
25	57
26	81
27	82
28	85
29	89
30	90
31	91
32	95
33	97
34	99
35	113
36	114
37	116
38	118
39	123
40	124
41	136
42	137
43	139
44	140
45	141
46	143
47	146
48	155
49	159
50	160
51	161
52	165
53	167
54	173
55	183
56	245
57	246
58	248
59	250
60	255
61	256
62	268