A064134 - cp's OEIS frontend

A064134 Number of divisors of 7^n + 1 that are relatively prime to 7^m + 1 for all 0 < m < n.

n	a(n)
0	2
1	4
2	3
3	2
4	2
5	4
6	4
7	4
8	4
9	2
10	4
11	4
12	8
13	4
14	2
15	2
16	4
17	2
18	2
19	4
20	4
21	4
22	8
23	2
24	2
25	2
26	4
27	2
28	16
29	2
30	4
31	8
32	8
33	4
34	8
35	16
36	8
37	4
38	2
39	8
40	8
41	16
42	2
43	128
44	8
45	16
46	16
47	2
48	8
49	128
50	16
51	8
52	8
53	16
54	8
55	32
56	32
57	8
58	16
59	16
60	4
61	2
62	8
63	32
64	8
65	4
66	16
67	8
68	8
69	8
70	8
71	4
72	32
73	8
74	2
75	8
76	32
77	32
78	4
79	16
80	8
81	16

[2, 4, 3, 2, 2, 4, 4, 4, 4, 2, 4, 4, 8, 4, 2, 2, 4, 2, 2, 4, 4, 4, 8, 2, 2, 2, 4, 2, 16, 2, 4, 8, 8, 4, 8, 16, 8, 4, 2, 8, 8, 16, 2, 128, 8, 16, 16, 2, 8, 128, 16, 8, 8, 16, 8, 32, 32, 8, 16, 16, 4, 2, 8, 32, 8, 4, 16, 8, 8, 8, 8, 4, 32, 8, 2, 8, 32, 32, 4, 16, 8, 16]

cp's OEIS Frontend

A064134 Number of divisors of 7^n + 1 that are relatively prime to 7^m + 1 for all 0 < m < n.

Table of values

List of values

n	a(n)
0	2
1	4
2	3
3	2
4	2
5	4
6	4
7	4
8	4
9	2
10	4
11	4
12	8
13	4
14	2
15	2
16	4
17	2
18	2
19	4
20	4
21	4
22	8
23	2
24	2
25	2
26	4
27	2
28	16
29	2
30	4
31	8
32	8
33	4
34	8
35	16
36	8
37	4
38	2
39	8
40	8
41	16
42	2
43	128
44	8
45	16
46	16
47	2
48	8
49	128
50	16
51	8
52	8
53	16
54	8
55	32
56	32
57	8
58	16
59	16
60	4
61	2
62	8
63	32
64	8
65	4
66	16
67	8
68	8
69	8
70	8
71	4
72	32
73	8
74	2
75	8
76	32
77	32
78	4
79	16
80	8
81	16

n	a(n)
0	2
1	4
2	3
3	2
4	2
5	4
6	4
7	4
8	4
9	2
10	4
11	4
12	8
13	4
14	2
15	2
16	4
17	2
18	2
19	4
20	4
21	4
22	8
23	2
24	2
25	2
26	4
27	2
28	16
29	2
30	4
31	8
32	8
33	4
34	8
35	16
36	8
37	4
38	2
39	8
40	8
41	16
42	2
43	128
44	8
45	16
46	16
47	2
48	8
49	128
50	16
51	8
52	8
53	16
54	8
55	32
56	32
57	8
58	16
59	16
60	4
61	2
62	8
63	32
64	8
65	4
66	16
67	8
68	8
69	8
70	8
71	4
72	32
73	8
74	2
75	8
76	32
77	32
78	4
79	16
80	8
81	16

n	a(n)
0	2
1	4
2	3
3	2
4	2
5	4
6	4
7	4
8	4
9	2
10	4
11	4
12	8
13	4
14	2
15	2
16	4
17	2
18	2
19	4
20	4
21	4
22	8
23	2
24	2
25	2
26	4
27	2
28	16
29	2
30	4
31	8
32	8
33	4
34	8
35	16
36	8
37	4
38	2
39	8
40	8
41	16
42	2
43	128
44	8
45	16
46	16
47	2
48	8
49	128
50	16
51	8
52	8
53	16
54	8
55	32
56	32
57	8
58	16
59	16
60	4
61	2
62	8
63	32
64	8
65	4
66	16
67	8
68	8
69	8
70	8
71	4
72	32
73	8
74	2
75	8
76	32
77	32
78	4
79	16
80	8
81	16