A260405 - cp's OEIS frontend

A260405 Irregular array read by rows, where the n-th row lists the primes p < A002110(n) such that 2*A002110(n) - p is also prime.

n	a(n)
1	5
2	7
3	13
4	17
5	19
6	23
7	29
8	11
9	19
10	23
11	31
12	37
13	41
14	47
15	53
16	61
17	67
18	71
19	73
20	83
21	89
22	103
23	107
24	109
25	113
26	127
27	137
28	139
29	149
30	151
31	157
32	163
33	179
34	181
35	191
36	193
37	197
38	17
39	23
40	29
41	37
42	53
43	59
44	71
45	73
46	97
47	101
48	103
49	107
50	113
51	127
52	137
53	139
54	157
55	163
56	173
57	179
58	197
59	199
60	211
61	223
62	229
63	257
64	263
65	271

[5, 7, 13, 17, 19, 23, 29, 11, 19, 23, 31, 37, 41, 47, 53, 61, 67, 71, 73, 83, 89, 103, 107, 109, 113, 127, 137, 139, 149, 151, 157, 163, 179, 181, 191, 193, 197, 17, 23, 29, 37, 53, 59, 71, 73, 97, 101, 103, 107, 113, 127, 137, 139, 157, 163, 173, 179, 197, 199, 211, 223, 229, 257, 263, 271]

cp's OEIS Frontend

A260405 Irregular array read by rows, where the n-th row lists the primes p < A002110(n) such that 2*A002110(n) - p is also prime.

Table of values

List of values

n	a(n)
1	5
2	7
3	13
4	17
5	19
6	23
7	29
8	11
9	19
10	23
11	31
12	37
13	41
14	47
15	53
16	61
17	67
18	71
19	73
20	83
21	89
22	103
23	107
24	109
25	113
26	127
27	137
28	139
29	149
30	151
31	157
32	163
33	179
34	181
35	191
36	193
37	197
38	17
39	23
40	29
41	37
42	53
43	59
44	71
45	73
46	97
47	101
48	103
49	107
50	113
51	127
52	137
53	139
54	157
55	163
56	173
57	179
58	197
59	199
60	211
61	223
62	229
63	257
64	263
65	271

n	a(n)
1	5
2	7
3	13
4	17
5	19
6	23
7	29
8	11
9	19
10	23
11	31
12	37
13	41
14	47
15	53
16	61
17	67
18	71
19	73
20	83
21	89
22	103
23	107
24	109
25	113
26	127
27	137
28	139
29	149
30	151
31	157
32	163
33	179
34	181
35	191
36	193
37	197
38	17
39	23
40	29
41	37
42	53
43	59
44	71
45	73
46	97
47	101
48	103
49	107
50	113
51	127
52	137
53	139
54	157
55	163
56	173
57	179
58	197
59	199
60	211
61	223
62	229
63	257
64	263
65	271

n	a(n)
1	5
2	7
3	13
4	17
5	19
6	23
7	29
8	11
9	19
10	23
11	31
12	37
13	41
14	47
15	53
16	61
17	67
18	71
19	73
20	83
21	89
22	103
23	107
24	109
25	113
26	127
27	137
28	139
29	149
30	151
31	157
32	163
33	179
34	181
35	191
36	193
37	197
38	17
39	23
40	29
41	37
42	53
43	59
44	71
45	73
46	97
47	101
48	103
49	107
50	113
51	127
52	137
53	139
54	157
55	163
56	173
57	179
58	197
59	199
60	211
61	223
62	229
63	257
64	263
65	271