A121090 - cp's OEIS frontend

A121090 Period of unit fractions having periodic decimal expansions.

n	a(n)
0	1
1	1
2	6
3	1
4	2
5	1
6	6
7	6
8	1
9	16
10	1
11	18
12	6
13	2
14	22
15	1
16	6
17	3
18	6
19	28
20	1
21	15
22	2
23	16
24	6
25	1
26	3
27	18
28	6
29	5
30	6
31	21
32	2
33	1
34	22
35	46
36	1
37	42
38	16
39	6
40	13
41	3
42	2
43	6
44	18
45	28
46	58
47	1
48	60
49	15
50	6
51	6
52	2
53	33
54	16
55	22
56	6
57	35
58	1
59	8
60	3
61	1
62	18
63	6
64	6
65	13
66	9
67	5
68	41
69	6
70	16
71	21
72	28
73	2
74	44
75	1
76	6
77	22
78	15
79	46
80	18
81	1
82	96
83	42
84	2
85	4
86	16

[1, 1, 6, 1, 2, 1, 6, 6, 1, 16, 1, 18, 6, 2, 22, 1, 6, 3, 6, 28, 1, 15, 2, 16, 6, 1, 3, 18, 6, 5, 6, 21, 2, 1, 22, 46, 1, 42, 16, 6, 13, 3, 2, 6, 18, 28, 58, 1, 60, 15, 6, 6, 2, 33, 16, 22, 6, 35, 1, 8, 3, 1, 18, 6, 6, 13, 9, 5, 41, 6, 16, 21, 28, 2, 44, 1, 6, 22, 15, 46, 18, 1, 96, 42, 2, 4, 16]

cp's OEIS Frontend

A121090 Period of unit fractions having periodic decimal expansions.

Table of values

List of values

n	a(n)
0	1
1	1
2	6
3	1
4	2
5	1
6	6
7	6
8	1
9	16
10	1
11	18
12	6
13	2
14	22
15	1
16	6
17	3
18	6
19	28
20	1
21	15
22	2
23	16
24	6
25	1
26	3
27	18
28	6
29	5
30	6
31	21
32	2
33	1
34	22
35	46
36	1
37	42
38	16
39	6
40	13
41	3
42	2
43	6
44	18
45	28
46	58
47	1
48	60
49	15
50	6
51	6
52	2
53	33
54	16
55	22
56	6
57	35
58	1
59	8
60	3
61	1
62	18
63	6
64	6
65	13
66	9
67	5
68	41
69	6
70	16
71	21
72	28
73	2
74	44
75	1
76	6
77	22
78	15
79	46
80	18
81	1
82	96
83	42
84	2
85	4
86	16

n	a(n)
0	1
1	1
2	6
3	1
4	2
5	1
6	6
7	6
8	1
9	16
10	1
11	18
12	6
13	2
14	22
15	1
16	6
17	3
18	6
19	28
20	1
21	15
22	2
23	16
24	6
25	1
26	3
27	18
28	6
29	5
30	6
31	21
32	2
33	1
34	22
35	46
36	1
37	42
38	16
39	6
40	13
41	3
42	2
43	6
44	18
45	28
46	58
47	1
48	60
49	15
50	6
51	6
52	2
53	33
54	16
55	22
56	6
57	35
58	1
59	8
60	3
61	1
62	18
63	6
64	6
65	13
66	9
67	5
68	41
69	6
70	16
71	21
72	28
73	2
74	44
75	1
76	6
77	22
78	15
79	46
80	18
81	1
82	96
83	42
84	2
85	4
86	16

n	a(n)
0	1
1	1
2	6
3	1
4	2
5	1
6	6
7	6
8	1
9	16
10	1
11	18
12	6
13	2
14	22
15	1
16	6
17	3
18	6
19	28
20	1
21	15
22	2
23	16
24	6
25	1
26	3
27	18
28	6
29	5
30	6
31	21
32	2
33	1
34	22
35	46
36	1
37	42
38	16
39	6
40	13
41	3
42	2
43	6
44	18
45	28
46	58
47	1
48	60
49	15
50	6
51	6
52	2
53	33
54	16
55	22
56	6
57	35
58	1
59	8
60	3
61	1
62	18
63	6
64	6
65	13
66	9
67	5
68	41
69	6
70	16
71	21
72	28
73	2
74	44
75	1
76	6
77	22
78	15
79	46
80	18
81	1
82	96
83	42
84	2
85	4
86	16