A154800 - cp's OEIS frontend

A154800 List of pairs of primes that are equidistant from and nearest to n, or the pair (0,0) if there is no such pair.

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

[0, 0, 0, 0, 0, 0, 3, 5, 3, 7, 5, 7, 3, 11, 5, 11, 7, 11, 7, 13, 5, 17, 11, 13, 7, 19, 11, 17, 13, 17, 13, 19, 11, 23, 17, 19, 7, 31, 17, 23, 19, 23, 13, 31, 17, 29, 19, 29, 19, 31, 23, 29, 23, 31, 19, 37, 17, 41, 29, 31, 19, 43, 23, 41, 29, 37, 31, 37, 29, 41, 31, 41, 31, 43, 29, 47]

cp's OEIS Frontend

A154800 List of pairs of primes that are equidistant from and nearest to n, or the pair (0,0) if there is no such pair.

Table of values

List of values

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

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

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