A175156 - cp's OEIS frontend

A175156 a(n) = 2^(n-1) mod composite(n).

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

[1, 2, 4, 8, 6, 8, 8, 8, 0, 8, 4, 11, 4, 8, 9, 8, 7, 4, 4, 0, 1, 32, 9, 32, 26, 2, 24, 8, 36, 32, 26, 32, 39, 42, 4, 20, 28, 7, 32, 8, 36, 32, 4, 2, 0, 57, 64, 60, 16, 2, 40, 60, 46, 48, 71, 50, 16, 8, 72, 32, 16, 32, 64, 8, 16, 32, 24, 35, 24]

cp's OEIS Frontend

A175156 a(n) = 2^(n-1) mod composite(n).

Table of values

List of values

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

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

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