A225192 - cp's OEIS frontend

A225192 Number of primes p such that p is -1 mod n where p < n-th prime.

n	a(n)
1	0
2	0
3	1
4	1
5	0
6	2
7	1
8	1
9	1
10	1
11	0
12	2
13	0
14	2
15	1
16	2
17	0
18	2
19	1
20	2
21	1
22	1
23	0
24	3
25	0
26	0
27	1
28	1
29	0
30	3
31	1
32	2
33	1
34	2
35	1
36	2
37	1
38	3
39	0
40	1
41	1
42	3
43	0
44	2
45	2
46	1
47	0
48	2
49	1
50	2
51	1
52	1
53	1
54	2
55	1
56	2
57	2
58	1
59	0
60	3
61	0
62	1
63	1
64	2
65	0
66	3
67	0
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	1
76	3
77	1
78	3
79	1
80	2
81	0
82	2
83	1
84	4
85	0
86	1
87	2

[0, 0, 1, 1, 0, 2, 1, 1, 1, 1, 0, 2, 0, 2, 1, 2, 0, 2, 1, 2, 1, 1, 0, 3, 0, 0, 1, 1, 0, 3, 1, 2, 1, 2, 1, 2, 1, 3, 0, 1, 1, 3, 0, 2, 2, 1, 0, 2, 1, 2, 1, 1, 1, 2, 1, 2, 2, 1, 0, 3, 0, 1, 1, 2, 0, 3, 0, 2, 1, 1, 1, 1, 0, 1, 1, 3, 1, 3, 1, 2, 0, 2, 1, 4, 0, 1, 2]

cp's OEIS Frontend

A225192 Number of primes p such that p is -1 mod n where p < n-th prime.

Table of values

List of values

n	a(n)
1	0
2	0
3	1
4	1
5	0
6	2
7	1
8	1
9	1
10	1
11	0
12	2
13	0
14	2
15	1
16	2
17	0
18	2
19	1
20	2
21	1
22	1
23	0
24	3
25	0
26	0
27	1
28	1
29	0
30	3
31	1
32	2
33	1
34	2
35	1
36	2
37	1
38	3
39	0
40	1
41	1
42	3
43	0
44	2
45	2
46	1
47	0
48	2
49	1
50	2
51	1
52	1
53	1
54	2
55	1
56	2
57	2
58	1
59	0
60	3
61	0
62	1
63	1
64	2
65	0
66	3
67	0
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	1
76	3
77	1
78	3
79	1
80	2
81	0
82	2
83	1
84	4
85	0
86	1
87	2

n	a(n)
1	0
2	0
3	1
4	1
5	0
6	2
7	1
8	1
9	1
10	1
11	0
12	2
13	0
14	2
15	1
16	2
17	0
18	2
19	1
20	2
21	1
22	1
23	0
24	3
25	0
26	0
27	1
28	1
29	0
30	3
31	1
32	2
33	1
34	2
35	1
36	2
37	1
38	3
39	0
40	1
41	1
42	3
43	0
44	2
45	2
46	1
47	0
48	2
49	1
50	2
51	1
52	1
53	1
54	2
55	1
56	2
57	2
58	1
59	0
60	3
61	0
62	1
63	1
64	2
65	0
66	3
67	0
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	1
76	3
77	1
78	3
79	1
80	2
81	0
82	2
83	1
84	4
85	0
86	1
87	2

n	a(n)
1	0
2	0
3	1
4	1
5	0
6	2
7	1
8	1
9	1
10	1
11	0
12	2
13	0
14	2
15	1
16	2
17	0
18	2
19	1
20	2
21	1
22	1
23	0
24	3
25	0
26	0
27	1
28	1
29	0
30	3
31	1
32	2
33	1
34	2
35	1
36	2
37	1
38	3
39	0
40	1
41	1
42	3
43	0
44	2
45	2
46	1
47	0
48	2
49	1
50	2
51	1
52	1
53	1
54	2
55	1
56	2
57	2
58	1
59	0
60	3
61	0
62	1
63	1
64	2
65	0
66	3
67	0
68	2
69	1
70	1
71	1
72	1
73	0
74	1
75	1
76	3
77	1
78	3
79	1
80	2
81	0
82	2
83	1
84	4
85	0
86	1
87	2