A309392 - cp's OEIS frontend

A309392 Square array read by downward antidiagonals: A(n, k) is the k-th prime p such that p + 2*n is also prime, or 0 if that prime does not exist.

n	a(n)
1	3
2	5
3	3
4	11
5	7
6	5
7	17
8	13
9	7
10	3
11	29
12	19
13	11
14	5
15	3
16	41
17	37
18	13
19	11
20	7
21	5
22	59
23	43
24	17
25	23
26	13
27	7
28	3
29	71
30	67
31	23
32	29
33	19
34	11
35	5
36	3
37	101
38	79
39	31
40	53
41	31
42	17
43	17
44	7
45	5
46	107
47	97
48	37
49	59
50	37
51	19
52	23
53	13
54	11
55	3
56	137
57	103
58	41
59	71
60	43
61	29
62	29
63	31
64	13
65	11
66	7
67	149
68	109

[3, 5, 3, 11, 7, 5, 17, 13, 7, 3, 29, 19, 11, 5, 3, 41, 37, 13, 11, 7, 5, 59, 43, 17, 23, 13, 7, 3, 71, 67, 23, 29, 19, 11, 5, 3, 101, 79, 31, 53, 31, 17, 17, 7, 5, 107, 97, 37, 59, 37, 19, 23, 13, 11, 3, 137, 103, 41, 71, 43, 29, 29, 31, 13, 11, 7, 149, 109]

cp's OEIS Frontend

A309392 Square array read by downward antidiagonals: A(n, k) is the k-th prime p such that p + 2*n is also prime, or 0 if that prime does not exist.

Table of values

List of values

n	a(n)
1	3
2	5
3	3
4	11
5	7
6	5
7	17
8	13
9	7
10	3
11	29
12	19
13	11
14	5
15	3
16	41
17	37
18	13
19	11
20	7
21	5
22	59
23	43
24	17
25	23
26	13
27	7
28	3
29	71
30	67
31	23
32	29
33	19
34	11
35	5
36	3
37	101
38	79
39	31
40	53
41	31
42	17
43	17
44	7
45	5
46	107
47	97
48	37
49	59
50	37
51	19
52	23
53	13
54	11
55	3
56	137
57	103
58	41
59	71
60	43
61	29
62	29
63	31
64	13
65	11
66	7
67	149
68	109

n	a(n)
1	3
2	5
3	3
4	11
5	7
6	5
7	17
8	13
9	7
10	3
11	29
12	19
13	11
14	5
15	3
16	41
17	37
18	13
19	11
20	7
21	5
22	59
23	43
24	17
25	23
26	13
27	7
28	3
29	71
30	67
31	23
32	29
33	19
34	11
35	5
36	3
37	101
38	79
39	31
40	53
41	31
42	17
43	17
44	7
45	5
46	107
47	97
48	37
49	59
50	37
51	19
52	23
53	13
54	11
55	3
56	137
57	103
58	41
59	71
60	43
61	29
62	29
63	31
64	13
65	11
66	7
67	149
68	109

n	a(n)
1	3
2	5
3	3
4	11
5	7
6	5
7	17
8	13
9	7
10	3
11	29
12	19
13	11
14	5
15	3
16	41
17	37
18	13
19	11
20	7
21	5
22	59
23	43
24	17
25	23
26	13
27	7
28	3
29	71
30	67
31	23
32	29
33	19
34	11
35	5
36	3
37	101
38	79
39	31
40	53
41	31
42	17
43	17
44	7
45	5
46	107
47	97
48	37
49	59
50	37
51	19
52	23
53	13
54	11
55	3
56	137
57	103
58	41
59	71
60	43
61	29
62	29
63	31
64	13
65	11
66	7
67	149
68	109