A090865 - cp's OEIS frontend

A090865 Primes p such that (p-1)/2 is prime if p == 3 (mod 4) or (p-1)/4 is prime if p == 1 (mod 4).

n	a(n)
1	7
2	11
3	13
4	23
5	29
6	47
7	53
8	59
9	83
10	107
11	149
12	167
13	173
14	179
15	227
16	263
17	269
18	293
19	317
20	347
21	359
22	383
23	389
24	467
25	479
26	503
27	509
28	557
29	563
30	587
31	653
32	719
33	773
34	797
35	839
36	863
37	887
38	983
39	1019
40	1109
41	1187
42	1229
43	1283
44	1307
45	1319
46	1367
47	1439
48	1487
49	1493
50	1523
51	1619

[7, 11, 13, 23, 29, 47, 53, 59, 83, 107, 149, 167, 173, 179, 227, 263, 269, 293, 317, 347, 359, 383, 389, 467, 479, 503, 509, 557, 563, 587, 653, 719, 773, 797, 839, 863, 887, 983, 1019, 1109, 1187, 1229, 1283, 1307, 1319, 1367, 1439, 1487, 1493, 1523, 1619]

cp's OEIS Frontend

A090865 Primes p such that (p-1)/2 is prime if p == 3 (mod 4) or (p-1)/4 is prime if p == 1 (mod 4).

Table of values

List of values