A371274 - cp's OEIS frontend

A371274 Irregular table read by rows: T(n,k) is the number of k-sided regions, k>=2, formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.

n	a(n)
2	1
3	3
4	3
5	4
6	0
7	1
8	10
9	10
10	5
11	1
12	12
13	6
14	14
15	56
16	21
17	0
18	7
19	1
20	8
21	48
22	32
23	0
24	0
25	0
26	1
27	27
28	144
29	54
30	27
31	18
32	10
33	160
34	70
35	0
36	30
37	0
38	0
39	0
40	1
41	22
42	253
43	330
44	11
45	33
46	0
47	0
48	0
49	0
50	1
51	12
52	276
53	204
54	0
55	24
56	26
57	624
58	403
59	130
60	104
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	14
69	630
70	448
71	112
72	70
73	14
74	14
75	0
76	0
77	0
78	0
79	0
80	1
81	45
82	960
83	915
84	165
85	165

[1, 3, 3, 4, 0, 1, 10, 10, 5, 1, 12, 6, 14, 56, 21, 0, 7, 1, 8, 48, 32, 0, 0, 0, 1, 27, 144, 54, 27, 18, 10, 160, 70, 0, 30, 0, 0, 0, 1, 22, 253, 330, 11, 33, 0, 0, 0, 0, 1, 12, 276, 204, 0, 24, 26, 624, 403, 130, 104, 0, 0, 0, 0, 0, 0, 1, 14, 630, 448, 112, 70, 14, 14, 0, 0, 0, 0, 0, 1, 45, 960, 915, 165, 165]

cp's OEIS Frontend

A371274 Irregular table read by rows: T(n,k) is the number of k-sided regions, k>=2, formed when n equally spaced points are placed around a circle and all pairs of points are joined by an interior arc whose radius equals the circle's radius.

Table of values

List of values

n	a(n)
2	1
3	3
4	3
5	4
6	0
7	1
8	10
9	10
10	5
11	1
12	12
13	6
14	14
15	56
16	21
17	0
18	7
19	1
20	8
21	48
22	32
23	0
24	0
25	0
26	1
27	27
28	144
29	54
30	27
31	18
32	10
33	160
34	70
35	0
36	30
37	0
38	0
39	0
40	1
41	22
42	253
43	330
44	11
45	33
46	0
47	0
48	0
49	0
50	1
51	12
52	276
53	204
54	0
55	24
56	26
57	624
58	403
59	130
60	104
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	14
69	630
70	448
71	112
72	70
73	14
74	14
75	0
76	0
77	0
78	0
79	0
80	1
81	45
82	960
83	915
84	165
85	165

n	a(n)
2	1
3	3
4	3
5	4
6	0
7	1
8	10
9	10
10	5
11	1
12	12
13	6
14	14
15	56
16	21
17	0
18	7
19	1
20	8
21	48
22	32
23	0
24	0
25	0
26	1
27	27
28	144
29	54
30	27
31	18
32	10
33	160
34	70
35	0
36	30
37	0
38	0
39	0
40	1
41	22
42	253
43	330
44	11
45	33
46	0
47	0
48	0
49	0
50	1
51	12
52	276
53	204
54	0
55	24
56	26
57	624
58	403
59	130
60	104
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	14
69	630
70	448
71	112
72	70
73	14
74	14
75	0
76	0
77	0
78	0
79	0
80	1
81	45
82	960
83	915
84	165
85	165

n	a(n)
2	1
3	3
4	3
5	4
6	0
7	1
8	10
9	10
10	5
11	1
12	12
13	6
14	14
15	56
16	21
17	0
18	7
19	1
20	8
21	48
22	32
23	0
24	0
25	0
26	1
27	27
28	144
29	54
30	27
31	18
32	10
33	160
34	70
35	0
36	30
37	0
38	0
39	0
40	1
41	22
42	253
43	330
44	11
45	33
46	0
47	0
48	0
49	0
50	1
51	12
52	276
53	204
54	0
55	24
56	26
57	624
58	403
59	130
60	104
61	0
62	0
63	0
64	0
65	0
66	0
67	1
68	14
69	630
70	448
71	112
72	70
73	14
74	14
75	0
76	0
77	0
78	0
79	0
80	1
81	45
82	960
83	915
84	165
85	165