A166574 - cp's OEIS frontend

A166574 If p, q are successive primes, and there is a number k with p < k <= q such that r = p+k is a prime, then r is in the sequence.

n	a(n)
1	5
2	7
3	11
4	17
5	23
6	29
7	41
8	47
9	59
10	67
11	83
12	89
13	97
14	107
15	109
16	127
17	137
18	149
19	151
20	167
21	179
22	181
23	197
24	227
25	229
26	233
27	239
28	257
29	263
30	281
31	283
32	307
33	317
34	337
35	347
36	349
37	359
38	367
39	383
40	389
41	401
42	409
43	431
44	433
45	449
46	461
47	467
48	479
49	487
50	491

[5, 7, 11, 17, 23, 29, 41, 47, 59, 67, 83, 89, 97, 107, 109, 127, 137, 149, 151, 167, 179, 181, 197, 227, 229, 233, 239, 257, 263, 281, 283, 307, 317, 337, 347, 349, 359, 367, 383, 389, 401, 409, 431, 433, 449, 461, 467, 479, 487, 491]

cp's OEIS Frontend

A166574 If p, q are successive primes, and there is a number k with p < k <= q such that r = p+k is a prime, then r is in the sequence.

Table of values

List of values

n	a(n)
1	5
2	7
3	11
4	17
5	23
6	29
7	41
8	47
9	59
10	67
11	83
12	89
13	97
14	107
15	109
16	127
17	137
18	149
19	151
20	167
21	179
22	181
23	197
24	227
25	229
26	233
27	239
28	257
29	263
30	281
31	283
32	307
33	317
34	337
35	347
36	349
37	359
38	367
39	383
40	389
41	401
42	409
43	431
44	433
45	449
46	461
47	467
48	479
49	487
50	491

n	a(n)
1	5
2	7
3	11
4	17
5	23
6	29
7	41
8	47
9	59
10	67
11	83
12	89
13	97
14	107
15	109
16	127
17	137
18	149
19	151
20	167
21	179
22	181
23	197
24	227
25	229
26	233
27	239
28	257
29	263
30	281
31	283
32	307
33	317
34	337
35	347
36	349
37	359
38	367
39	383
40	389
41	401
42	409
43	431
44	433
45	449
46	461
47	467
48	479
49	487
50	491

n	a(n)
1	5
2	7
3	11
4	17
5	23
6	29
7	41
8	47
9	59
10	67
11	83
12	89
13	97
14	107
15	109
16	127
17	137
18	149
19	151
20	167
21	179
22	181
23	197
24	227
25	229
26	233
27	239
28	257
29	263
30	281
31	283
32	307
33	317
34	337
35	347
36	349
37	359
38	367
39	383
40	389
41	401
42	409
43	431
44	433
45	449
46	461
47	467
48	479
49	487
50	491