A366142 - cp's OEIS frontend

A366142 Matula-Goebel numbers of rooted trees which are symmetrical about a straight line passing through the root.

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	12
11	16
12	17
13	18
14	19
15	20
16	23
17	25
18	27
19	28
20	31
21	32
22	36
23	37
24	44
25	45
26	48
27	49
28	50
29	53
30	59
31	61
32	63
33	64
34	67
35	68
36	71
37	72
38	75
39	76
40	80
41	81
42	83
43	92
44	97
45	98
46	99
47	100
48	103
49	107
50	108
51	112
52	121
53	124
54	125
55	127
56	128
57	131
58	144
59	147
60	148
61	151
62	153
63	157
64	162
65	169
66	171
67	175
68	176
69	180

[1, 2, 3, 4, 5, 7, 8, 9, 11, 12, 16, 17, 18, 19, 20, 23, 25, 27, 28, 31, 32, 36, 37, 44, 45, 48, 49, 50, 53, 59, 61, 63, 64, 67, 68, 71, 72, 75, 76, 80, 81, 83, 92, 97, 98, 99, 100, 103, 107, 108, 112, 121, 124, 125, 127, 128, 131, 144, 147, 148, 151, 153, 157, 162, 169, 171, 175, 176, 180]

cp's OEIS Frontend

A366142 Matula-Goebel numbers of rooted trees which are symmetrical about a straight line passing through the root.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	12
11	16
12	17
13	18
14	19
15	20
16	23
17	25
18	27
19	28
20	31
21	32
22	36
23	37
24	44
25	45
26	48
27	49
28	50
29	53
30	59
31	61
32	63
33	64
34	67
35	68
36	71
37	72
38	75
39	76
40	80
41	81
42	83
43	92
44	97
45	98
46	99
47	100
48	103
49	107
50	108
51	112
52	121
53	124
54	125
55	127
56	128
57	131
58	144
59	147
60	148
61	151
62	153
63	157
64	162
65	169
66	171
67	175
68	176
69	180

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	12
11	16
12	17
13	18
14	19
15	20
16	23
17	25
18	27
19	28
20	31
21	32
22	36
23	37
24	44
25	45
26	48
27	49
28	50
29	53
30	59
31	61
32	63
33	64
34	67
35	68
36	71
37	72
38	75
39	76
40	80
41	81
42	83
43	92
44	97
45	98
46	99
47	100
48	103
49	107
50	108
51	112
52	121
53	124
54	125
55	127
56	128
57	131
58	144
59	147
60	148
61	151
62	153
63	157
64	162
65	169
66	171
67	175
68	176
69	180

n	a(n)
1	1
2	2
3	3
4	4
5	5
6	7
7	8
8	9
9	11
10	12
11	16
12	17
13	18
14	19
15	20
16	23
17	25
18	27
19	28
20	31
21	32
22	36
23	37
24	44
25	45
26	48
27	49
28	50
29	53
30	59
31	61
32	63
33	64
34	67
35	68
36	71
37	72
38	75
39	76
40	80
41	81
42	83
43	92
44	97
45	98
46	99
47	100
48	103
49	107
50	108
51	112
52	121
53	124
54	125
55	127
56	128
57	131
58	144
59	147
60	148
61	151
62	153
63	157
64	162
65	169
66	171
67	175
68	176
69	180