A057937 - cp's OEIS frontend

A057937 Number of prime factors of 7^n + 1 (counted with multiplicity).

n	a(n)
1	3
2	3
3	4
4	2
5	5
6	5
7	5
8	3
9	5
10	6
11	5
12	5
13	5
14	4
15	7
16	3
17	4
18	6
19	5
20	4
21	8
22	6
23	4
24	4
25	6
26	5
27	6
28	6
29	4
30	10
31	6
32	4
33	8
34	6
35	11
36	8
37	5
38	4
39	9
40	6
41	7
42	7
43	10
44	5
45	12
46	7
47	4
48	6
49	12
50	11
51	8
52	5
53	7
54	9
55	13
56	8
57	9
58	7
59	7
60	9
61	4
62	6
63	14
64	4
65	9
66	12
67	6
68	5
69	8
70	10
71	5
72	9
73	6
74	4
75	11
76	7
77	12
78	10
79	7
80	6
81	10
82	6
83	5
84	12
85	8
86	6
87	8
88	5
89	8
90	14
91	11
92	6
93	9
94	6
95	11

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

cp's OEIS Frontend

A057937 Number of prime factors of 7^n + 1 (counted with multiplicity).

Table of values

List of values

n	a(n)
1	3
2	3
3	4
4	2
5	5
6	5
7	5
8	3
9	5
10	6
11	5
12	5
13	5
14	4
15	7
16	3
17	4
18	6
19	5
20	4
21	8
22	6
23	4
24	4
25	6
26	5
27	6
28	6
29	4
30	10
31	6
32	4
33	8
34	6
35	11
36	8
37	5
38	4
39	9
40	6
41	7
42	7
43	10
44	5
45	12
46	7
47	4
48	6
49	12
50	11
51	8
52	5
53	7
54	9
55	13
56	8
57	9
58	7
59	7
60	9
61	4
62	6
63	14
64	4
65	9
66	12
67	6
68	5
69	8
70	10
71	5
72	9
73	6
74	4
75	11
76	7
77	12
78	10
79	7
80	6
81	10
82	6
83	5
84	12
85	8
86	6
87	8
88	5
89	8
90	14
91	11
92	6
93	9
94	6
95	11

n	a(n)
1	3
2	3
3	4
4	2
5	5
6	5
7	5
8	3
9	5
10	6
11	5
12	5
13	5
14	4
15	7
16	3
17	4
18	6
19	5
20	4
21	8
22	6
23	4
24	4
25	6
26	5
27	6
28	6
29	4
30	10
31	6
32	4
33	8
34	6
35	11
36	8
37	5
38	4
39	9
40	6
41	7
42	7
43	10
44	5
45	12
46	7
47	4
48	6
49	12
50	11
51	8
52	5
53	7
54	9
55	13
56	8
57	9
58	7
59	7
60	9
61	4
62	6
63	14
64	4
65	9
66	12
67	6
68	5
69	8
70	10
71	5
72	9
73	6
74	4
75	11
76	7
77	12
78	10
79	7
80	6
81	10
82	6
83	5
84	12
85	8
86	6
87	8
88	5
89	8
90	14
91	11
92	6
93	9
94	6
95	11

n	a(n)
1	3
2	3
3	4
4	2
5	5
6	5
7	5
8	3
9	5
10	6
11	5
12	5
13	5
14	4
15	7
16	3
17	4
18	6
19	5
20	4
21	8
22	6
23	4
24	4
25	6
26	5
27	6
28	6
29	4
30	10
31	6
32	4
33	8
34	6
35	11
36	8
37	5
38	4
39	9
40	6
41	7
42	7
43	10
44	5
45	12
46	7
47	4
48	6
49	12
50	11
51	8
52	5
53	7
54	9
55	13
56	8
57	9
58	7
59	7
60	9
61	4
62	6
63	14
64	4
65	9
66	12
67	6
68	5
69	8
70	10
71	5
72	9
73	6
74	4
75	11
76	7
77	12
78	10
79	7
80	6
81	10
82	6
83	5
84	12
85	8
86	6
87	8
88	5
89	8
90	14
91	11
92	6
93	9
94	6
95	11