A235330 - cp's OEIS frontend

A235330 Number of ways to write 2*n = p + q with p, q, prime(p) - p + 1 and prime(q) + q + 1 all prime.

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

[0, 0, 0, 1, 1, 1, 1, 1, 2, 0, 1, 1, 1, 3, 1, 1, 2, 3, 0, 1, 2, 0, 3, 1, 0, 2, 2, 0, 0, 1, 1, 2, 3, 0, 1, 3, 0, 2, 0, 0, 2, 1, 0, 1, 2, 0, 3, 0, 0, 4, 2, 1, 1, 1, 1, 3, 4, 1, 1, 3, 1, 0, 2, 1, 1, 3, 0, 0, 2, 3, 3, 3, 1, 1, 3, 3, 2, 3, 1, 1, 5, 0, 1, 4, 2, 1, 1]

cp's OEIS Frontend

A235330 Number of ways to write 2*n = p + q with p, q, prime(p) - p + 1 and prime(q) + q + 1 all prime.

Table of values

List of values

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

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

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