A065047 - cp's OEIS frontend

A065047 Primes which when written in base 2 and prepended with a 1 produce a prime.

n	a(n)
1	3
2	5
3	13
4	29
5	37
6	43
7	71
8	83
9	101
10	113
11	163
12	193
13	211
14	223
15	257
16	311
17	317
18	347
19	479
20	509
21	547
22	577
23	613
24	643
25	673
26	709
27	787
28	823
29	853
30	877
31	883
32	907
33	1031
34	1061
35	1181
36	1223
37	1259
38	1283
39	1409
40	1451
41	1481
42	1493
43	1499
44	1511
45	1523
46	1559
47	1583
48	1721
49	1871
50	1973

[3, 5, 13, 29, 37, 43, 71, 83, 101, 113, 163, 193, 211, 223, 257, 311, 317, 347, 479, 509, 547, 577, 613, 643, 673, 709, 787, 823, 853, 877, 883, 907, 1031, 1061, 1181, 1223, 1259, 1283, 1409, 1451, 1481, 1493, 1499, 1511, 1523, 1559, 1583, 1721, 1871, 1973]

cp's OEIS Frontend

A065047 Primes which when written in base 2 and prepended with a 1 produce a prime.

Table of values

List of values