A003566 - cp's OEIS frontend

A003566 Least number m such that 10^m == +- 1 mod (10n + 1).

n	a(n)
1	1
2	6
3	15
4	5
5	16
6	30
7	35
8	9
9	3
10	2
11	3
12	11
13	65
14	46
15	75
16	33
17	18
18	90
19	95
20	33
21	15
22	48
23	6
24	15
25	25
26	28
27	5
28	14
29	96
30	42
31	155
32	53
33	55
34	30
35	6
36	171
37	78
38	42
39	176
40	100
41	8
42	70
43	215
44	42
45	10
46	230
47	78
48	6
49	245
50	166
51	24
52	26
53	58
54	270
55	252
56	16
57	285
58	246
59	98
60	150
61	69
62	66
63	315
64	16
65	30

[1, 6, 15, 5, 16, 30, 35, 9, 3, 2, 3, 11, 65, 46, 75, 33, 18, 90, 95, 33, 15, 48, 6, 15, 25, 28, 5, 14, 96, 42, 155, 53, 55, 30, 6, 171, 78, 42, 176, 100, 8, 70, 215, 42, 10, 230, 78, 6, 245, 166, 24, 26, 58, 270, 252, 16, 285, 246, 98, 150, 69, 66, 315, 16, 30]

cp's OEIS Frontend

A003566 Least number m such that 10^m == +- 1 mod (10n + 1).

Table of values

List of values

n	a(n)
1	1
2	6
3	15
4	5
5	16
6	30
7	35
8	9
9	3
10	2
11	3
12	11
13	65
14	46
15	75
16	33
17	18
18	90
19	95
20	33
21	15
22	48
23	6
24	15
25	25
26	28
27	5
28	14
29	96
30	42
31	155
32	53
33	55
34	30
35	6
36	171
37	78
38	42
39	176
40	100
41	8
42	70
43	215
44	42
45	10
46	230
47	78
48	6
49	245
50	166
51	24
52	26
53	58
54	270
55	252
56	16
57	285
58	246
59	98
60	150
61	69
62	66
63	315
64	16
65	30

n	a(n)
1	1
2	6
3	15
4	5
5	16
6	30
7	35
8	9
9	3
10	2
11	3
12	11
13	65
14	46
15	75
16	33
17	18
18	90
19	95
20	33
21	15
22	48
23	6
24	15
25	25
26	28
27	5
28	14
29	96
30	42
31	155
32	53
33	55
34	30
35	6
36	171
37	78
38	42
39	176
40	100
41	8
42	70
43	215
44	42
45	10
46	230
47	78
48	6
49	245
50	166
51	24
52	26
53	58
54	270
55	252
56	16
57	285
58	246
59	98
60	150
61	69
62	66
63	315
64	16
65	30

n	a(n)
1	1
2	6
3	15
4	5
5	16
6	30
7	35
8	9
9	3
10	2
11	3
12	11
13	65
14	46
15	75
16	33
17	18
18	90
19	95
20	33
21	15
22	48
23	6
24	15
25	25
26	28
27	5
28	14
29	96
30	42
31	155
32	53
33	55
34	30
35	6
36	171
37	78
38	42
39	176
40	100
41	8
42	70
43	215
44	42
45	10
46	230
47	78
48	6
49	245
50	166
51	24
52	26
53	58
54	270
55	252
56	16
57	285
58	246
59	98
60	150
61	69
62	66
63	315
64	16
65	30