A080970 - cp's OEIS frontend

A080970 A014486-indices of the trees whose interior zigzag-tree (Stanley's c) is not branch-reduced (in the sense defined by Donaghey).

n	a(n)
0	4
1	8
2	9
3	10
4	13
5	14
6	17
7	19
8	21
9	22
10	23
11	24
12	25
13	26
14	27
15	28
16	31
17	33
18	35
19	36
20	37
21	38
22	41
23	42
24	44
25	45
26	46
27	50
28	51
29	52
30	54
31	56
32	58
33	59
34	60
35	61
36	62
37	63
38	64
39	65
40	66
41	67
42	68
43	69
44	70
45	71
46	72
47	73
48	74
49	75
50	76
51	77
52	78
53	79
54	80
55	83
56	84
57	86
58	87
59	88
60	92
61	93
62	94
63	96
64	98
65	100
66	101
67	102
68	103

[4, 8, 9, 10, 13, 14, 17, 19, 21, 22, 23, 24, 25, 26, 27, 28, 31, 33, 35, 36, 37, 38, 41, 42, 44, 45, 46, 50, 51, 52, 54, 56, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 83, 84, 86, 87, 88, 92, 93, 94, 96, 98, 100, 101, 102, 103]

cp's OEIS Frontend

A080970 A014486-indices of the trees whose interior zigzag-tree (Stanley's c) is not branch-reduced (in the sense defined by Donaghey).

Table of values

List of values

n	a(n)
0	4
1	8
2	9
3	10
4	13
5	14
6	17
7	19
8	21
9	22
10	23
11	24
12	25
13	26
14	27
15	28
16	31
17	33
18	35
19	36
20	37
21	38
22	41
23	42
24	44
25	45
26	46
27	50
28	51
29	52
30	54
31	56
32	58
33	59
34	60
35	61
36	62
37	63
38	64
39	65
40	66
41	67
42	68
43	69
44	70
45	71
46	72
47	73
48	74
49	75
50	76
51	77
52	78
53	79
54	80
55	83
56	84
57	86
58	87
59	88
60	92
61	93
62	94
63	96
64	98
65	100
66	101
67	102
68	103

n	a(n)
0	4
1	8
2	9
3	10
4	13
5	14
6	17
7	19
8	21
9	22
10	23
11	24
12	25
13	26
14	27
15	28
16	31
17	33
18	35
19	36
20	37
21	38
22	41
23	42
24	44
25	45
26	46
27	50
28	51
29	52
30	54
31	56
32	58
33	59
34	60
35	61
36	62
37	63
38	64
39	65
40	66
41	67
42	68
43	69
44	70
45	71
46	72
47	73
48	74
49	75
50	76
51	77
52	78
53	79
54	80
55	83
56	84
57	86
58	87
59	88
60	92
61	93
62	94
63	96
64	98
65	100
66	101
67	102
68	103

n	a(n)
0	4
1	8
2	9
3	10
4	13
5	14
6	17
7	19
8	21
9	22
10	23
11	24
12	25
13	26
14	27
15	28
16	31
17	33
18	35
19	36
20	37
21	38
22	41
23	42
24	44
25	45
26	46
27	50
28	51
29	52
30	54
31	56
32	58
33	59
34	60
35	61
36	62
37	63
38	64
39	65
40	66
41	67
42	68
43	69
44	70
45	71
46	72
47	73
48	74
49	75
50	76
51	77
52	78
53	79
54	80
55	83
56	84
57	86
58	87
59	88
60	92
61	93
62	94
63	96
64	98
65	100
66	101
67	102
68	103