A386409 - cp's OEIS frontend

A386409 Number of nonnegative values s < n such that (-s)^s == -s (mod n).

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

[1, 1, 2, 2, 2, 4, 2, 4, 3, 4, 3, 7, 5, 5, 6, 6, 4, 6, 4, 9, 8, 5, 2, 13, 4, 8, 3, 9, 4, 14, 3, 6, 7, 8, 12, 11, 3, 7, 10, 17, 5, 16, 6, 9, 10, 5, 2, 19, 7, 8, 10, 13, 3, 6, 11, 18, 11, 7, 3, 27, 5, 7, 14, 10, 16, 17, 5, 13, 7, 21, 4, 21, 5, 6, 14, 12, 12, 21, 5, 27, 6, 11, 3, 29, 16, 10, 9, 19, 4, 23]

cp's OEIS Frontend

A386409 Number of nonnegative values s < n such that (-s)^s == -s (mod n).

Table of values

List of values

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

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

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