A064127 - cp's OEIS frontend

A064127 Number of divisors of 11^n - 1 that are relatively prime to 11^m - 1 for all 0 < m < n.

n	a(n)
1	4
2	2
3	4
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	4
12	4
13	4
14	2
15	2
16	4
17	2
18	2
19	2
20	2
21	8
22	16
23	8
24	4
25	8
26	8
27	2
28	8
29	4
30	4
31	8
32	4
33	8
34	8
35	4
36	2
37	16
38	16
39	64
40	4
41	128
42	2
43	4
44	4
45	2
46	16
47	8
48	16
49	8
50	4
51	16
52	2
53	16
54	4
55	16
56	16
57	4
58	8
59	8
60	2
61	8
62	16
63	32
64	8
65	4
66	16
67	16
68	16
69	8
70	48
71	32
72	8
73	2
74	4
75	16
76	4
77	4
78	8
79	8
80	4

[4, 2, 4, 2, 2, 2, 4, 2, 2, 2, 4, 4, 4, 2, 2, 4, 2, 2, 2, 2, 8, 16, 8, 4, 8, 8, 2, 8, 4, 4, 8, 4, 8, 8, 4, 2, 16, 16, 64, 4, 128, 2, 4, 4, 2, 16, 8, 16, 8, 4, 16, 2, 16, 4, 16, 16, 4, 8, 8, 2, 8, 16, 32, 8, 4, 16, 16, 16, 8, 48, 32, 8, 2, 4, 16, 4, 4, 8, 8, 4]

cp's OEIS Frontend

A064127 Number of divisors of 11^n - 1 that are relatively prime to 11^m - 1 for all 0 < m < n.

Table of values

List of values

n	a(n)
1	4
2	2
3	4
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	4
12	4
13	4
14	2
15	2
16	4
17	2
18	2
19	2
20	2
21	8
22	16
23	8
24	4
25	8
26	8
27	2
28	8
29	4
30	4
31	8
32	4
33	8
34	8
35	4
36	2
37	16
38	16
39	64
40	4
41	128
42	2
43	4
44	4
45	2
46	16
47	8
48	16
49	8
50	4
51	16
52	2
53	16
54	4
55	16
56	16
57	4
58	8
59	8
60	2
61	8
62	16
63	32
64	8
65	4
66	16
67	16
68	16
69	8
70	48
71	32
72	8
73	2
74	4
75	16
76	4
77	4
78	8
79	8
80	4

n	a(n)
1	4
2	2
3	4
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	4
12	4
13	4
14	2
15	2
16	4
17	2
18	2
19	2
20	2
21	8
22	16
23	8
24	4
25	8
26	8
27	2
28	8
29	4
30	4
31	8
32	4
33	8
34	8
35	4
36	2
37	16
38	16
39	64
40	4
41	128
42	2
43	4
44	4
45	2
46	16
47	8
48	16
49	8
50	4
51	16
52	2
53	16
54	4
55	16
56	16
57	4
58	8
59	8
60	2
61	8
62	16
63	32
64	8
65	4
66	16
67	16
68	16
69	8
70	48
71	32
72	8
73	2
74	4
75	16
76	4
77	4
78	8
79	8
80	4

n	a(n)
1	4
2	2
3	4
4	2
5	2
6	2
7	4
8	2
9	2
10	2
11	4
12	4
13	4
14	2
15	2
16	4
17	2
18	2
19	2
20	2
21	8
22	16
23	8
24	4
25	8
26	8
27	2
28	8
29	4
30	4
31	8
32	4
33	8
34	8
35	4
36	2
37	16
38	16
39	64
40	4
41	128
42	2
43	4
44	4
45	2
46	16
47	8
48	16
49	8
50	4
51	16
52	2
53	16
54	4
55	16
56	16
57	4
58	8
59	8
60	2
61	8
62	16
63	32
64	8
65	4
66	16
67	16
68	16
69	8
70	48
71	32
72	8
73	2
74	4
75	16
76	4
77	4
78	8
79	8
80	4