A238134 - cp's OEIS frontend

A238134 Number of primes p < n with q = floor((n-p)/4) and prime(q) - q + 1 both prime.

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

[0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 2, 3, 3, 4, 4, 4, 3, 3, 3, 3, 4, 4, 4, 6, 5, 5, 5, 3, 4, 6, 6, 7, 6, 4, 4, 4, 4, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 4, 4, 6, 6, 4, 5, 5, 5, 7, 6, 6, 6, 5, 5, 4, 4, 5, 5, 5, 5, 5, 6, 8, 8, 8, 7, 7, 7, 4, 4, 4, 4]

cp's OEIS Frontend

A238134 Number of primes p < n with q = floor((n-p)/4) and prime(q) - q + 1 both prime.

Table of values

List of values

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

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

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