A380656 - cp's OEIS frontend

A380656 a(n) is the number of divisors d such that -d^n mod n = d.

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

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

cp's OEIS Frontend

A380656 a(n) is the number of divisors d such that -d^n mod n = d.

Table of values

List of values

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

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

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