A307070 - cp's OEIS frontend

A307070 a(n) is the number of decimal places before the decimal expansion of 1/n terminates, or the period of the recurring portion of 1/n if it is recurring.

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

[0, 1, 1, 2, 1, 1, 6, 3, 1, 1, 2, 1, 6, 6, 1, 4, 16, 1, 18, 2, 6, 2, 22, 1, 2, 6, 3, 6, 28, 1, 15, 5, 2, 16, 6, 1, 3, 18, 6, 3, 5, 6, 21, 2, 1, 22, 46, 1, 42, 2, 16, 6, 13, 3, 2, 6, 18, 28, 58, 1, 60, 15, 6, 6, 6, 2, 33, 16, 22, 6, 35, 1, 8, 3, 1, 18, 6, 6, 13]

cp's OEIS Frontend

A307070 a(n) is the number of decimal places before the decimal expansion of 1/n terminates, or the period of the recurring portion of 1/n if it is recurring.

Table of values

List of values

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

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

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