A294390 - cp's OEIS frontend

A294390 a(n) = 2^(n-4) mod n, for n >= 4.

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

[1, 2, 4, 1, 0, 5, 4, 7, 4, 5, 2, 8, 0, 15, 4, 12, 16, 11, 14, 3, 16, 2, 10, 5, 8, 11, 4, 4, 0, 17, 30, 23, 4, 14, 24, 20, 16, 36, 4, 27, 12, 32, 6, 6, 16, 8, 14, 26, 40, 20, 22, 13, 16, 29, 22, 37, 16, 23, 8, 32, 0, 2, 4, 42, 52, 35, 64, 9, 40, 64, 28, 23, 20, 30, 4]

cp's OEIS Frontend

A294390 a(n) = 2^(n-4) mod n, for n >= 4.

Table of values

List of values

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

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

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