A164846 - cp's OEIS frontend

A164846 Triangle read by rows: frequency with which the number of values taken by cos(2*Pi/k) mod j occurs for each j >= 1, taken over k = 1..j-1.

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	0
11	0
12	1
13	3
14	0
15	0
16	0
17	3
18	0
19	0
20	1
21	1
22	0
23	2
24	3
25	0
26	1
27	0
28	0
29	0
30	4
31	0
32	0
33	2
34	0
35	0
36	1
37	0
38	3
39	1
40	1
41	2
42	0
43	1
44	0
45	0
46	0
47	3
48	2
49	0
50	1
51	2
52	0
53	0
54	1
55	0
56	0
57	2
58	5
59	1
60	1
61	0
62	1
63	0
64	0
65	0
66	0
67	0
68	6
69	0
70	0
71	3
72	0
73	0
74	0
75	0
76	0
77	0
78	2
79	0
80	3
81	6
82	0
83	2
84	0
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	5
94	2
95	0
96	2
97	1
98	0
99	0
100	1
101	2
102	0
103	0
104	0
105	0

[0, 0, 1, 0, 1, 1, 0, 2, 1, 0, 0, 1, 3, 0, 0, 0, 3, 0, 0, 1, 1, 0, 2, 3, 0, 1, 0, 0, 0, 4, 0, 0, 2, 0, 0, 1, 0, 3, 1, 1, 2, 0, 1, 0, 0, 0, 3, 2, 0, 1, 2, 0, 0, 1, 0, 0, 2, 5, 1, 1, 0, 1, 0, 0, 0, 0, 0, 6, 0, 0, 3, 0, 0, 0, 0, 0, 0, 2, 0, 3, 6, 0, 2, 0, 1, 0, 0, 0, 0, 0, 0, 0, 5, 2, 0, 2, 1, 0, 0, 1, 2, 0, 0, 0, 0]

cp's OEIS Frontend

A164846 Triangle read by rows: frequency with which the number of values taken by cos(2*Pi/k) mod j occurs 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	1
6	1
7	0
8	2
9	1
10	0
11	0
12	1
13	3
14	0
15	0
16	0
17	3
18	0
19	0
20	1
21	1
22	0
23	2
24	3
25	0
26	1
27	0
28	0
29	0
30	4
31	0
32	0
33	2
34	0
35	0
36	1
37	0
38	3
39	1
40	1
41	2
42	0
43	1
44	0
45	0
46	0
47	3
48	2
49	0
50	1
51	2
52	0
53	0
54	1
55	0
56	0
57	2
58	5
59	1
60	1
61	0
62	1
63	0
64	0
65	0
66	0
67	0
68	6
69	0
70	0
71	3
72	0
73	0
74	0
75	0
76	0
77	0
78	2
79	0
80	3
81	6
82	0
83	2
84	0
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	5
94	2
95	0
96	2
97	1
98	0
99	0
100	1
101	2
102	0
103	0
104	0
105	0

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	0
11	0
12	1
13	3
14	0
15	0
16	0
17	3
18	0
19	0
20	1
21	1
22	0
23	2
24	3
25	0
26	1
27	0
28	0
29	0
30	4
31	0
32	0
33	2
34	0
35	0
36	1
37	0
38	3
39	1
40	1
41	2
42	0
43	1
44	0
45	0
46	0
47	3
48	2
49	0
50	1
51	2
52	0
53	0
54	1
55	0
56	0
57	2
58	5
59	1
60	1
61	0
62	1
63	0
64	0
65	0
66	0
67	0
68	6
69	0
70	0
71	3
72	0
73	0
74	0
75	0
76	0
77	0
78	2
79	0
80	3
81	6
82	0
83	2
84	0
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	5
94	2
95	0
96	2
97	1
98	0
99	0
100	1
101	2
102	0
103	0
104	0
105	0

n	a(n)
1	0
2	0
3	1
4	0
5	1
6	1
7	0
8	2
9	1
10	0
11	0
12	1
13	3
14	0
15	0
16	0
17	3
18	0
19	0
20	1
21	1
22	0
23	2
24	3
25	0
26	1
27	0
28	0
29	0
30	4
31	0
32	0
33	2
34	0
35	0
36	1
37	0
38	3
39	1
40	1
41	2
42	0
43	1
44	0
45	0
46	0
47	3
48	2
49	0
50	1
51	2
52	0
53	0
54	1
55	0
56	0
57	2
58	5
59	1
60	1
61	0
62	1
63	0
64	0
65	0
66	0
67	0
68	6
69	0
70	0
71	3
72	0
73	0
74	0
75	0
76	0
77	0
78	2
79	0
80	3
81	6
82	0
83	2
84	0
85	1
86	0
87	0
88	0
89	0
90	0
91	0
92	0
93	5
94	2
95	0
96	2
97	1
98	0
99	0
100	1
101	2
102	0
103	0
104	0
105	0