A060370 - cp's OEIS frontend

A060370 Ratios (p-1)/d, where p is a prime and d is the number of digits of the periodic part of the decimal expansion of 1/p.

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	2
7	1
8	1
9	1
10	1
11	2
12	12
13	8
14	2
15	1
16	4
17	1
18	1
19	2
20	2
21	9
22	6
23	2
24	2
25	1
26	25
27	3
28	2
29	1
30	1
31	3
32	1
33	17
34	3
35	1
36	2
37	2
38	2
39	1
40	4
41	1
42	1
43	2
44	1
45	2
46	2
47	7
48	1
49	2
50	1
51	1
52	34
53	8
54	5
55	1
56	1
57	1
58	54
59	4
60	10
61	2
62	2
63	2
64	2
65	1
66	4
67	3
68	1
69	2
70	3
71	11
72	2
73	1
74	2
75	1
76	1
77	1
78	4
79	2
80	2
81	1
82	3
83	2
84	1
85	2

[1, 2, 4, 1, 5, 2, 1, 1, 1, 1, 2, 12, 8, 2, 1, 4, 1, 1, 2, 2, 9, 6, 2, 2, 1, 25, 3, 2, 1, 1, 3, 1, 17, 3, 1, 2, 2, 2, 1, 4, 1, 1, 2, 1, 2, 2, 7, 1, 2, 1, 1, 34, 8, 5, 1, 1, 1, 54, 4, 10, 2, 2, 2, 2, 1, 4, 3, 1, 2, 3, 11, 2, 1, 2, 1, 1, 1, 4, 2, 2, 1, 3, 2, 1, 2]

cp's OEIS Frontend

A060370 Ratios (p-1)/d, where p is a prime and d is the number of digits of the periodic part of the decimal expansion of 1/p.

Table of values

List of values

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	2
7	1
8	1
9	1
10	1
11	2
12	12
13	8
14	2
15	1
16	4
17	1
18	1
19	2
20	2
21	9
22	6
23	2
24	2
25	1
26	25
27	3
28	2
29	1
30	1
31	3
32	1
33	17
34	3
35	1
36	2
37	2
38	2
39	1
40	4
41	1
42	1
43	2
44	1
45	2
46	2
47	7
48	1
49	2
50	1
51	1
52	34
53	8
54	5
55	1
56	1
57	1
58	54
59	4
60	10
61	2
62	2
63	2
64	2
65	1
66	4
67	3
68	1
69	2
70	3
71	11
72	2
73	1
74	2
75	1
76	1
77	1
78	4
79	2
80	2
81	1
82	3
83	2
84	1
85	2

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	2
7	1
8	1
9	1
10	1
11	2
12	12
13	8
14	2
15	1
16	4
17	1
18	1
19	2
20	2
21	9
22	6
23	2
24	2
25	1
26	25
27	3
28	2
29	1
30	1
31	3
32	1
33	17
34	3
35	1
36	2
37	2
38	2
39	1
40	4
41	1
42	1
43	2
44	1
45	2
46	2
47	7
48	1
49	2
50	1
51	1
52	34
53	8
54	5
55	1
56	1
57	1
58	54
59	4
60	10
61	2
62	2
63	2
64	2
65	1
66	4
67	3
68	1
69	2
70	3
71	11
72	2
73	1
74	2
75	1
76	1
77	1
78	4
79	2
80	2
81	1
82	3
83	2
84	1
85	2

n	a(n)
1	1
2	2
3	4
4	1
5	5
6	2
7	1
8	1
9	1
10	1
11	2
12	12
13	8
14	2
15	1
16	4
17	1
18	1
19	2
20	2
21	9
22	6
23	2
24	2
25	1
26	25
27	3
28	2
29	1
30	1
31	3
32	1
33	17
34	3
35	1
36	2
37	2
38	2
39	1
40	4
41	1
42	1
43	2
44	1
45	2
46	2
47	7
48	1
49	2
50	1
51	1
52	34
53	8
54	5
55	1
56	1
57	1
58	54
59	4
60	10
61	2
62	2
63	2
64	2
65	1
66	4
67	3
68	1
69	2
70	3
71	11
72	2
73	1
74	2
75	1
76	1
77	1
78	4
79	2
80	2
81	1
82	3
83	2
84	1
85	2