A260689 - cp's OEIS frontend

A260689 Table read by rows: numbers m such that (2n-m, 2n+m) is a prime pair.

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

[1, 1, 3, 5, 3, 7, 1, 5, 7, 3, 9, 3, 13, 1, 5, 11, 13, 3, 9, 17, 9, 15, 19, 5, 7, 13, 17, 19, 3, 15, 21, 9, 15, 25, 1, 7, 11, 13, 17, 23, 9, 15, 21, 27, 29, 3, 27, 5, 7, 17, 23, 25, 31, 9, 15, 21, 33, 35, 3, 21, 27, 33, 1, 5, 11, 19, 25, 29, 31, 37, 3, 15, 27]

cp's OEIS Frontend

A260689 Table read by rows: numbers m such that (2n-m, 2n+m) is a prime pair.

Table of values

List of values

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

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

cp's OEIS Frontend

A260689 Table read by rows: numbers m such that (2*n-m, 2*n+m) is a prime pair.

Table of values

List of values

A260689 Table read by rows: numbers m such that (2n-m, 2n+m) is a prime pair.

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