A156284 - cp's OEIS frontend

A156284 From every interval (2^(m-1), 2^m), m >= 3, we remove primes p for which 2^m-p is a prime that was not removed for smaller values of m; the sequence gives all remaining odd primes.

n	a(n)
1	3
2	7
3	11
4	17
5	19
6	23
7	31
8	37
9	43
10	59
11	67
12	71
13	73
14	79
15	83
16	89
17	101
18	103
19	107
20	113
21	127
22	131
23	137
24	139
25	151
26	157
27	163
28	179
29	181
30	191
31	193
32	199
33	211
34	223
35	227
36	229
37	241
38	251
39	257
40	263
41	269

[3, 7, 11, 17, 19, 23, 31, 37, 43, 59, 67, 71, 73, 79, 83, 89, 101, 103, 107, 113, 127, 131, 137, 139, 151, 157, 163, 179, 181, 191, 193, 199, 211, 223, 227, 229, 241, 251, 257, 263, 269]

cp's OEIS Frontend

A156284 From every interval (2^(m-1), 2^m), m >= 3, we remove primes p for which 2^m-p is a prime that was not removed for smaller values of m; the sequence gives all remaining odd primes.

Table of values

List of values

n	a(n)
1	3
2	7
3	11
4	17
5	19
6	23
7	31
8	37
9	43
10	59
11	67
12	71
13	73
14	79
15	83
16	89
17	101
18	103
19	107
20	113
21	127
22	131
23	137
24	139
25	151
26	157
27	163
28	179
29	181
30	191
31	193
32	199
33	211
34	223
35	227
36	229
37	241
38	251
39	257
40	263
41	269

n	a(n)
1	3
2	7
3	11
4	17
5	19
6	23
7	31
8	37
9	43
10	59
11	67
12	71
13	73
14	79
15	83
16	89
17	101
18	103
19	107
20	113
21	127
22	131
23	137
24	139
25	151
26	157
27	163
28	179
29	181
30	191
31	193
32	199
33	211
34	223
35	227
36	229
37	241
38	251
39	257
40	263
41	269

n	a(n)
1	3
2	7
3	11
4	17
5	19
6	23
7	31
8	37
9	43
10	59
11	67
12	71
13	73
14	79
15	83
16	89
17	101
18	103
19	107
20	113
21	127
22	131
23	137
24	139
25	151
26	157
27	163
28	179
29	181
30	191
31	193
32	199
33	211
34	223
35	227
36	229
37	241
38	251
39	257
40	263
41	269