A182594 - cp's OEIS frontend

A182594 Number of prime factors of form c*n+1 for numbers 7^n-1, counted with multiplicity.

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

[1, 1, 2, 1, 2, 2, 1, 3, 3, 2, 2, 1, 4, 2, 3, 2, 4, 2, 3, 1, 4, 3, 4, 3, 3, 4, 4, 3, 3, 3, 2, 4, 3, 3, 3, 3, 4, 4, 5, 3, 4, 2, 4, 2, 4, 2, 3, 4, 4, 5, 5, 3, 5, 1, 6, 3, 4, 4, 5, 4, 6, 2, 3, 6, 6, 4, 6, 3, 8, 2, 5, 5, 5, 3, 2, 3, 7, 2, 5, 6, 7, 7, 3, 3, 9, 5, 4, 3, 6, 5, 5, 4, 3, 3, 5, 3, 11, 4, 6]

cp's OEIS Frontend

A182594 Number of prime factors of form c*n+1 for numbers 7^n-1, counted with multiplicity.

Table of values

List of values

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

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

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