A165252 - cp's OEIS frontend

A165252 Triangle read by rows: Frequency with which the values of cos(2*Pi/k) mod j, listed in A164823, occur for each j >= 1, taken over k = 1..j-1.

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

[0, 0, 1, 0, 2, 1, 0, 3, 0, 1, 0, 4, 1, 0, 2, 0, 5, 2, 1, 2, 2, 0, 6, 0, 2, 1, 0, 3, 0, 7, 1, 3, 1, 3, 1, 3, 0, 8, 1, 2, 2, 1, 2, 2, 4, 0, 9, 1, 1, 4, 2, 4, 3, 1, 4, 0, 10, 1, 0, 1, 3, 1, 2, 0, 2, 5]

cp's OEIS Frontend

A165252 Triangle read by rows: Frequency with which the values of cos(2*Pi/k) mod j, listed in A164823, occur for each j >= 1, taken over k = 1..j-1.

Table of values

List of values

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

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

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