A211243 - cp's OEIS frontend

A211243 Order of 7 mod n-th prime: least k such that prime(n) divides 7^k-1.

n	a(n)
1	1
2	1
3	4
4	0
5	10
6	12
7	16
8	3
9	22
10	7
11	15
12	9
13	40
14	6
15	23
16	26
17	29
18	60
19	66
20	70
21	24
22	78
23	41
24	88
25	96
26	100
27	51
28	106
29	27
30	14
31	126
32	65
33	68
34	69
35	74
36	150
37	52
38	162
39	83
40	172
41	178
42	12
43	10
44	24
45	98
46	99
47	210
48	37
49	113
50	228
51	116
52	238
53	240
54	125
55	256
56	262
57	268
58	135
59	138
60	20
61	141
62	292

[1, 1, 4, 0, 10, 12, 16, 3, 22, 7, 15, 9, 40, 6, 23, 26, 29, 60, 66, 70, 24, 78, 41, 88, 96, 100, 51, 106, 27, 14, 126, 65, 68, 69, 74, 150, 52, 162, 83, 172, 178, 12, 10, 24, 98, 99, 210, 37, 113, 228, 116, 238, 240, 125, 256, 262, 268, 135, 138, 20, 141, 292]

cp's OEIS Frontend

A211243 Order of 7 mod n-th prime: least k such that prime(n) divides 7^k-1.

Table of values

List of values

n	a(n)
1	1
2	1
3	4
4	0
5	10
6	12
7	16
8	3
9	22
10	7
11	15
12	9
13	40
14	6
15	23
16	26
17	29
18	60
19	66
20	70
21	24
22	78
23	41
24	88
25	96
26	100
27	51
28	106
29	27
30	14
31	126
32	65
33	68
34	69
35	74
36	150
37	52
38	162
39	83
40	172
41	178
42	12
43	10
44	24
45	98
46	99
47	210
48	37
49	113
50	228
51	116
52	238
53	240
54	125
55	256
56	262
57	268
58	135
59	138
60	20
61	141
62	292

n	a(n)
1	1
2	1
3	4
4	0
5	10
6	12
7	16
8	3
9	22
10	7
11	15
12	9
13	40
14	6
15	23
16	26
17	29
18	60
19	66
20	70
21	24
22	78
23	41
24	88
25	96
26	100
27	51
28	106
29	27
30	14
31	126
32	65
33	68
34	69
35	74
36	150
37	52
38	162
39	83
40	172
41	178
42	12
43	10
44	24
45	98
46	99
47	210
48	37
49	113
50	228
51	116
52	238
53	240
54	125
55	256
56	262
57	268
58	135
59	138
60	20
61	141
62	292

n	a(n)
1	1
2	1
3	4
4	0
5	10
6	12
7	16
8	3
9	22
10	7
11	15
12	9
13	40
14	6
15	23
16	26
17	29
18	60
19	66
20	70
21	24
22	78
23	41
24	88
25	96
26	100
27	51
28	106
29	27
30	14
31	126
32	65
33	68
34	69
35	74
36	150
37	52
38	162
39	83
40	172
41	178
42	12
43	10
44	24
45	98
46	99
47	210
48	37
49	113
50	228
51	116
52	238
53	240
54	125
55	256
56	262
57	268
58	135
59	138
60	20
61	141
62	292