A158021 - cp's OEIS frontend

A158021 Primes such that p, 10*p-1 and (p-1)/2 are all prime.

n	a(n)
1	11
2	23
3	83
4	107
5	167
6	179
7	227
8	347
9	479
10	587
11	839
12	863
13	983
14	1283
15	1367
16	1439
17	1487
18	1619
19	1823
20	1907
21	2027
22	2039
23	2447
24	2879
25	2963
26	2999
27	3119
28	3203
29	3623
30	3863
31	4127
32	4139
33	4259
34	4283
35	4787
36	5099
37	5483
38	5879
39	6719
40	6779
41	6983
42	7247
43	7703
44	7727
45	7823

[11, 23, 83, 107, 167, 179, 227, 347, 479, 587, 839, 863, 983, 1283, 1367, 1439, 1487, 1619, 1823, 1907, 2027, 2039, 2447, 2879, 2963, 2999, 3119, 3203, 3623, 3863, 4127, 4139, 4259, 4283, 4787, 5099, 5483, 5879, 6719, 6779, 6983, 7247, 7703, 7727, 7823]

cp's OEIS Frontend

A158021 Primes such that p, 10*p-1 and (p-1)/2 are all prime.

Table of values

List of values