A182599 - cp's OEIS frontend

A182599 Number of prime factors of form cn+1 for numbers 7^n+1.

n	a(n)
2	2
3	1
4	1
5	2
6	2
7	2
8	2
9	1
10	2
11	2
12	4
13	2
14	1
15	1
16	2
17	1
18	2
19	2
20	3
21	3
22	3
23	1
24	1
25	1
26	2
27	1
28	4
29	1
30	4
31	3
32	3
33	2
34	3
35	5
36	4
37	2
38	1
39	3
40	3
41	4
42	2
43	7
44	3
45	4
46	4
47	1
48	3
49	7
50	4
51	4
52	3
53	4
54	3
55	6
56	5
57	5
58	4
59	4
60	3
61	1
62	3
63	8
64	3
65	2
66	5
67	3
68	3
69	4
70	4
71	2
72	5
73	3
74	1
75	5
76	5
77	5
78	4
79	4
80	3
81	4
82	3
83	2
84	5
85	3
86	3
87	4
88	2
89	5
90	4
91	5
92	4
93	5
94	3
95	6
96	6
97	3
98	5
99	3
100	3

[2, 1, 1, 2, 2, 2, 2, 1, 2, 2, 4, 2, 1, 1, 2, 1, 2, 2, 3, 3, 3, 1, 1, 1, 2, 1, 4, 1, 4, 3, 3, 2, 3, 5, 4, 2, 1, 3, 3, 4, 2, 7, 3, 4, 4, 1, 3, 7, 4, 4, 3, 4, 3, 6, 5, 5, 4, 4, 3, 1, 3, 8, 3, 2, 5, 3, 3, 4, 4, 2, 5, 3, 1, 5, 5, 5, 4, 4, 3, 4, 3, 2, 5, 3, 3, 4, 2, 5, 4, 5, 4, 5, 3, 6, 6, 3, 5, 3, 3]

cp's OEIS Frontend

A182599 Number of prime factors of form cn+1 for numbers 7^n+1.

Table of values

List of values

n	a(n)
2	2
3	1
4	1
5	2
6	2
7	2
8	2
9	1
10	2
11	2
12	4
13	2
14	1
15	1
16	2
17	1
18	2
19	2
20	3
21	3
22	3
23	1
24	1
25	1
26	2
27	1
28	4
29	1
30	4
31	3
32	3
33	2
34	3
35	5
36	4
37	2
38	1
39	3
40	3
41	4
42	2
43	7
44	3
45	4
46	4
47	1
48	3
49	7
50	4
51	4
52	3
53	4
54	3
55	6
56	5
57	5
58	4
59	4
60	3
61	1
62	3
63	8
64	3
65	2
66	5
67	3
68	3
69	4
70	4
71	2
72	5
73	3
74	1
75	5
76	5
77	5
78	4
79	4
80	3
81	4
82	3
83	2
84	5
85	3
86	3
87	4
88	2
89	5
90	4
91	5
92	4
93	5
94	3
95	6
96	6
97	3
98	5
99	3
100	3

n	a(n)
2	2
3	1
4	1
5	2
6	2
7	2
8	2
9	1
10	2
11	2
12	4
13	2
14	1
15	1
16	2
17	1
18	2
19	2
20	3
21	3
22	3
23	1
24	1
25	1
26	2
27	1
28	4
29	1
30	4
31	3
32	3
33	2
34	3
35	5
36	4
37	2
38	1
39	3
40	3
41	4
42	2
43	7
44	3
45	4
46	4
47	1
48	3
49	7
50	4
51	4
52	3
53	4
54	3
55	6
56	5
57	5
58	4
59	4
60	3
61	1
62	3
63	8
64	3
65	2
66	5
67	3
68	3
69	4
70	4
71	2
72	5
73	3
74	1
75	5
76	5
77	5
78	4
79	4
80	3
81	4
82	3
83	2
84	5
85	3
86	3
87	4
88	2
89	5
90	4
91	5
92	4
93	5
94	3
95	6
96	6
97	3
98	5
99	3
100	3

n	a(n)
2	2
3	1
4	1
5	2
6	2
7	2
8	2
9	1
10	2
11	2
12	4
13	2
14	1
15	1
16	2
17	1
18	2
19	2
20	3
21	3
22	3
23	1
24	1
25	1
26	2
27	1
28	4
29	1
30	4
31	3
32	3
33	2
34	3
35	5
36	4
37	2
38	1
39	3
40	3
41	4
42	2
43	7
44	3
45	4
46	4
47	1
48	3
49	7
50	4
51	4
52	3
53	4
54	3
55	6
56	5
57	5
58	4
59	4
60	3
61	1
62	3
63	8
64	3
65	2
66	5
67	3
68	3
69	4
70	4
71	2
72	5
73	3
74	1
75	5
76	5
77	5
78	4
79	4
80	3
81	4
82	3
83	2
84	5
85	3
86	3
87	4
88	2
89	5
90	4
91	5
92	4
93	5
94	3
95	6
96	6
97	3
98	5
99	3
100	3