A352434 - cp's OEIS frontend

A352434 The number of simple vertices on a diagonal of a regular 2n-gon when all its vertices are connected by lines and where the diagonal passes through the center of the 2n-gon.

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

[0, 1, 2, 2, 4, 4, 6, 6, 8, 8, 10, 8, 12, 12, 14, 14, 16, 16, 18, 18, 20, 20, 22, 20, 24, 24, 26, 26, 28, 28, 30, 30, 32, 32, 34, 32, 36, 36, 38, 38, 40, 40, 42, 42, 44, 44, 46, 44, 48, 48, 50, 50, 52, 52, 54, 54, 56, 56, 58, 56, 60, 60, 62, 62, 64, 64, 66, 66, 68, 68, 70, 68, 72, 72, 74, 74, 76]

cp's OEIS Frontend

A352434 The number of simple vertices on a diagonal of a regular 2n-gon when all its vertices are connected by lines and where the diagonal passes through the center of the 2n-gon.

Table of values

List of values

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

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

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