A366611 - cp's OEIS frontend

A366611 Number of distinct prime divisors of 5^n - 1.

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

[1, 2, 2, 3, 3, 4, 2, 4, 4, 5, 2, 6, 2, 5, 6, 6, 3, 7, 4, 8, 5, 6, 3, 8, 7, 5, 8, 7, 4, 11, 3, 8, 5, 6, 8, 11, 4, 8, 5, 11, 3, 12, 3, 9, 11, 6, 2, 11, 3, 11, 7, 8, 4, 14, 8, 9, 6, 7, 3, 17, 4, 7, 10, 11, 7, 12, 6, 11, 8, 14, 3, 16, 4, 8, 15, 11, 6, 11, 4, 15]

cp's OEIS Frontend

A366611 Number of distinct prime divisors of 5^n - 1.

Table of values

List of values

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

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

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