A064286 - cp's OEIS frontend

A064286 Number of cyclotomic cosets C of 2 mod 2n+1 such that -C = C.

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

[1, 1, 0, 2, 1, 1, 2, 2, 1, 1, 0, 2, 3, 1, 0, 4, 1, 1, 2, 2, 3, 3, 0, 0, 3, 1, 2, 4, 1, 1, 2, 6, 1, 1, 0, 0, 3, 1, 0, 4, 1, 3, 2, 0, 1, 1, 2, 2, 7, 1, 0, 2, 1, 3, 2, 4, 1, 3, 2, 2, 3, 3, 0, 10, 1, 1, 4, 2, 1, 1, 2, 6, 1, 1, 0, 4, 1, 3, 2, 0, 1, 5, 0, 2, 11, 1, 2, 4, 1, 1, 2, 6, 3, 3, 0, 2, 7, 1, 0, 4, 1, 11, 2, 4]

cp's OEIS Frontend

A064286 Number of cyclotomic cosets C of 2 mod 2n+1 such that -C = C.

Table of values

List of values

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

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

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