A157834 - cp's OEIS frontend

A157834 Numbers n such that 3n-2 and 3n+2 are both prime.

n	a(n)
1	3
2	5
3	7
4	13
5	15
6	23
7	27
8	33
9	35
10	37
11	43
12	55
13	65
14	75
15	77
16	93
17	103
18	105
19	117
20	127
21	133
22	147
23	153
24	155
25	163
26	167
27	205
28	215
29	225
30	247
31	253
32	257
33	275
34	285
35	287
36	293
37	295
38	303
39	313
40	323
41	337
42	363
43	365
44	405
45	427
46	433
47	435
48	475
49	477
50	483
51	495
52	497
53	517

[3, 5, 7, 13, 15, 23, 27, 33, 35, 37, 43, 55, 65, 75, 77, 93, 103, 105, 117, 127, 133, 147, 153, 155, 163, 167, 205, 215, 225, 247, 253, 257, 275, 285, 287, 293, 295, 303, 313, 323, 337, 363, 365, 405, 427, 433, 435, 475, 477, 483, 495, 497, 517]

cp's OEIS Frontend

A157834 Numbers n such that 3n-2 and 3n+2 are both prime.

Table of values

List of values

n	a(n)
1	3
2	5
3	7
4	13
5	15
6	23
7	27
8	33
9	35
10	37
11	43
12	55
13	65
14	75
15	77
16	93
17	103
18	105
19	117
20	127
21	133
22	147
23	153
24	155
25	163
26	167
27	205
28	215
29	225
30	247
31	253
32	257
33	275
34	285
35	287
36	293
37	295
38	303
39	313
40	323
41	337
42	363
43	365
44	405
45	427
46	433
47	435
48	475
49	477
50	483
51	495
52	497
53	517

n	a(n)
1	3
2	5
3	7
4	13
5	15
6	23
7	27
8	33
9	35
10	37
11	43
12	55
13	65
14	75
15	77
16	93
17	103
18	105
19	117
20	127
21	133
22	147
23	153
24	155
25	163
26	167
27	205
28	215
29	225
30	247
31	253
32	257
33	275
34	285
35	287
36	293
37	295
38	303
39	313
40	323
41	337
42	363
43	365
44	405
45	427
46	433
47	435
48	475
49	477
50	483
51	495
52	497
53	517

n	a(n)
1	3
2	5
3	7
4	13
5	15
6	23
7	27
8	33
9	35
10	37
11	43
12	55
13	65
14	75
15	77
16	93
17	103
18	105
19	117
20	127
21	133
22	147
23	153
24	155
25	163
26	167
27	205
28	215
29	225
30	247
31	253
32	257
33	275
34	285
35	287
36	293
37	295
38	303
39	313
40	323
41	337
42	363
43	365
44	405
45	427
46	433
47	435
48	475
49	477
50	483
51	495
52	497
53	517