A216369 - cp's OEIS frontend

A216369 a(n) = !(n-1) mod n.

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

[0, 0, 1, 2, 4, 2, 6, 6, 1, 6, 1, 2, 10, 8, 4, 6, 13, 8, 9, 6, 13, 10, 21, 14, 14, 16, 10, 22, 17, 26, 2, 6, 1, 4, 34, 26, 5, 10, 10, 6, 4, 8, 16, 10, 19, 2, 18, 38, 48, 36, 13, 42, 13, 44, 34, 22, 28, 12, 28, 26, 22, 60, 55, 38, 49, 32, 65, 38, 67, 36, 68, 62]

cp's OEIS Frontend

A216369 a(n) = !(n-1) mod n.

Table of values

List of values

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

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

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