A015910 - cp's OEIS frontend

A015910 a(n) = 2^n mod n.

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

[0, 0, 2, 0, 2, 4, 2, 0, 8, 4, 2, 4, 2, 4, 8, 0, 2, 10, 2, 16, 8, 4, 2, 16, 7, 4, 26, 16, 2, 4, 2, 0, 8, 4, 18, 28, 2, 4, 8, 16, 2, 22, 2, 16, 17, 4, 2, 16, 30, 24, 8, 16, 2, 28, 43, 32, 8, 4, 2, 16, 2, 4, 8, 0, 32, 64, 2, 16, 8, 44, 2, 64, 2, 4, 68, 16, 18, 64, 2, 16, 80, 4, 2, 64]

cp's OEIS Frontend

A015910 a(n) = 2^n mod n.

Table of values

List of values

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

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

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