A366687 - cp's OEIS frontend

A366687 Number of prime factors of 11^n + 1 (counted with multiplicity).

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

[1, 3, 2, 5, 2, 4, 4, 4, 3, 7, 3, 7, 4, 6, 5, 8, 3, 6, 5, 7, 4, 7, 4, 7, 7, 6, 3, 10, 6, 6, 6, 7, 4, 13, 6, 11, 7, 5, 4, 11, 5, 6, 9, 5, 6, 13, 6, 7, 5, 8, 6, 11, 3, 7, 9, 13, 7, 12, 6, 7, 8, 6, 4, 13, 3, 10, 8, 9, 7, 14, 8, 6, 10, 8, 8, 13, 6, 12, 12, 7, 10]

cp's OEIS Frontend

A366687 Number of prime factors of 11^n + 1 (counted with multiplicity).

Table of values

List of values

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

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

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