A294389 - cp's OEIS frontend

A294389 a(n) = 2^(n-3) mod n, for n >= 3.

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

[1, 2, 4, 2, 2, 0, 1, 8, 3, 8, 10, 4, 1, 0, 13, 8, 5, 12, 1, 6, 6, 8, 4, 20, 10, 16, 22, 8, 8, 0, 1, 26, 11, 8, 28, 10, 1, 32, 31, 8, 11, 24, 19, 12, 12, 32, 16, 28, 1, 28, 40, 44, 26, 32, 1, 44, 15, 32, 46, 16, 1, 0, 4, 8, 17, 36, 1, 58, 18, 8, 55, 56, 46, 40, 60, 8, 20, 32, 10, 62, 21, 8, 4, 22]

cp's OEIS Frontend

A294389 a(n) = 2^(n-3) mod n, for n >= 3.

Table of values

List of values

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

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

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