A167771 - cp's OEIS frontend

A167771 Twice-isolated primes: primes p such that neither p+-2 nor p+-4 is prime.

n	a(n)
1	2
2	53
3	89
4	157
5	173
6	211
7	251
8	257
9	263
10	293
11	331
12	337
13	359
14	367
15	373
16	389
17	409
18	449
19	479
20	509
21	541
22	547
23	557
24	563
25	577
26	587
27	593
28	607
29	631
30	653
31	683
32	691
33	701
34	709
35	719
36	727
37	733
38	751
39	787
40	797
41	839
42	919
43	929
44	947
45	953
46	977
47	983
48	991
49	997
50	1039
51	1069
52	1103

[2, 53, 89, 157, 173, 211, 251, 257, 263, 293, 331, 337, 359, 367, 373, 389, 409, 449, 479, 509, 541, 547, 557, 563, 577, 587, 593, 607, 631, 653, 683, 691, 701, 709, 719, 727, 733, 751, 787, 797, 839, 919, 929, 947, 953, 977, 983, 991, 997, 1039, 1069, 1103]

cp's OEIS Frontend

A167771 Twice-isolated primes: primes p such that neither p+-2 nor p+-4 is prime.

Table of values

List of values