A092308 - cp's OEIS frontend

A092308 For p=prime(n), a(n) = the number of primes q such that q-1 divides p-1.

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	5
7	4
8	4
9	3
10	4
11	5
12	7
13	5
14	4
15	3
16	4
17	3
18	8
19	5
20	4
21	8
22	4
23	3
24	5
25	7
26	5
27	4
28	3
29	8
30	6
31	6
32	4
33	4
34	5
35	4
36	6
37	8
38	5
39	3
40	4
41	3
42	11
43	4
44	8
45	5
46	7
47	8
48	4
49	3
50	6
51	5
52	3
53	11
54	4
55	5
56	3
57	4
58	7
59	8
60	8
61	4
62	4
63	6
64	4
65	9
66	4
67	8
68	10
69	3
70	7
71	7
72	3
73	4
74	6
75	7
76	3
77	4
78	11
79	8
80	8
81	4
82	13
83	4
84	11
85	4
86	3
87	7
88	7
89	6
90	7
91	3
92	3
93	6
94	5
95	5
96	3
97	4
98	8
99	6
100	14
101	6
102	4

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

cp's OEIS Frontend

A092308 For p=prime(n), a(n) = the number of primes q such that q-1 divides p-1.

Table of values

List of values

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	5
7	4
8	4
9	3
10	4
11	5
12	7
13	5
14	4
15	3
16	4
17	3
18	8
19	5
20	4
21	8
22	4
23	3
24	5
25	7
26	5
27	4
28	3
29	8
30	6
31	6
32	4
33	4
34	5
35	4
36	6
37	8
38	5
39	3
40	4
41	3
42	11
43	4
44	8
45	5
46	7
47	8
48	4
49	3
50	6
51	5
52	3
53	11
54	4
55	5
56	3
57	4
58	7
59	8
60	8
61	4
62	4
63	6
64	4
65	9
66	4
67	8
68	10
69	3
70	7
71	7
72	3
73	4
74	6
75	7
76	3
77	4
78	11
79	8
80	8
81	4
82	13
83	4
84	11
85	4
86	3
87	7
88	7
89	6
90	7
91	3
92	3
93	6
94	5
95	5
96	3
97	4
98	8
99	6
100	14
101	6
102	4

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	5
7	4
8	4
9	3
10	4
11	5
12	7
13	5
14	4
15	3
16	4
17	3
18	8
19	5
20	4
21	8
22	4
23	3
24	5
25	7
26	5
27	4
28	3
29	8
30	6
31	6
32	4
33	4
34	5
35	4
36	6
37	8
38	5
39	3
40	4
41	3
42	11
43	4
44	8
45	5
46	7
47	8
48	4
49	3
50	6
51	5
52	3
53	11
54	4
55	5
56	3
57	4
58	7
59	8
60	8
61	4
62	4
63	6
64	4
65	9
66	4
67	8
68	10
69	3
70	7
71	7
72	3
73	4
74	6
75	7
76	3
77	4
78	11
79	8
80	8
81	4
82	13
83	4
84	11
85	4
86	3
87	7
88	7
89	6
90	7
91	3
92	3
93	6
94	5
95	5
96	3
97	4
98	8
99	6
100	14
101	6
102	4

n	a(n)
1	1
2	2
3	3
4	3
5	3
6	5
7	4
8	4
9	3
10	4
11	5
12	7
13	5
14	4
15	3
16	4
17	3
18	8
19	5
20	4
21	8
22	4
23	3
24	5
25	7
26	5
27	4
28	3
29	8
30	6
31	6
32	4
33	4
34	5
35	4
36	6
37	8
38	5
39	3
40	4
41	3
42	11
43	4
44	8
45	5
46	7
47	8
48	4
49	3
50	6
51	5
52	3
53	11
54	4
55	5
56	3
57	4
58	7
59	8
60	8
61	4
62	4
63	6
64	4
65	9
66	4
67	8
68	10
69	3
70	7
71	7
72	3
73	4
74	6
75	7
76	3
77	4
78	11
79	8
80	8
81	4
82	13
83	4
84	11
85	4
86	3
87	7
88	7
89	6
90	7
91	3
92	3
93	6
94	5
95	5
96	3
97	4
98	8
99	6
100	14
101	6
102	4