A122424 - cp's OEIS frontend

A122424 Primes p such that q = 4p^2 + 1 and r = 4q^2 + 1 are also prime.

n	a(n)
1	3
2	13
3	47
4	677
5	983
6	1013
7	1163
8	1373
9	1567
10	1877
11	2003
12	2333
13	2477
14	2753
15	3463
16	4057
17	4423
18	4993
19	7253
20	9833
21	10993
22	11383
23	13907
24	15413
25	15607
26	17317
27	18517
28	19867
29	20123
30	20533
31	20693
32	21937
33	24517
34	24967
35	25633
36	26293
37	28547
38	28867
39	29063

[3, 13, 47, 677, 983, 1013, 1163, 1373, 1567, 1877, 2003, 2333, 2477, 2753, 3463, 4057, 4423, 4993, 7253, 9833, 10993, 11383, 13907, 15413, 15607, 17317, 18517, 19867, 20123, 20533, 20693, 21937, 24517, 24967, 25633, 26293, 28547, 28867, 29063]

cp's OEIS Frontend

A122424 Primes p such that q = 4p^2 + 1 and r = 4q^2 + 1 are also prime.

Table of values

List of values