A064135 - cp's OEIS frontend

A064135 Number of divisors of 10^n + 1 that are relatively prime to 10^m + 1 for all 0 < m < n.

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

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

cp's OEIS Frontend

A064135 Number of divisors of 10^n + 1 that are relatively prime to 10^m + 1 for all 0 < m < n.

Table of values

List of values

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

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

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