A366682 - cp's OEIS frontend

A366682 Number of prime factors of 11^n - 1 (counted with multiplicity).

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

[2, 5, 4, 7, 4, 9, 4, 9, 5, 8, 4, 13, 4, 8, 7, 12, 3, 12, 3, 11, 10, 11, 5, 17, 8, 10, 6, 13, 4, 15, 5, 15, 9, 9, 8, 17, 6, 10, 12, 15, 9, 17, 4, 15, 9, 12, 5, 24, 7, 14, 9, 13, 6, 16, 10, 19, 8, 10, 5, 21, 5, 12, 16, 19, 8, 22, 6, 15, 10, 19, 7, 24, 3, 11, 15]

cp's OEIS Frontend

A366682 Number of prime factors of 11^n - 1 (counted with multiplicity).

Table of values

List of values

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

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

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