A274609 - cp's OEIS frontend

A274609 Primes p such that both 2p-1 and 2p^2-2p+1 are prime.

n	a(n)
1	2
2	3
3	31
4	331
5	1171
6	2011
7	2281
8	3181
9	4621
10	4861
11	6151
12	6211
13	6961
14	7951
15	8521
16	9151
17	11251
18	12211
19	13411
20	15661
21	17491
22	18121
23	19141
24	20641
25	22531
26	23071
27	23581
28	24631
29	25411
30	26041
31	26161
32	26431
33	26641
34	27091
35	27271
36	27361
37	27691
38	28201
39	28621
40	29221
41	31891
42	33151
43	34261
44	35491
45	36451

[2, 3, 31, 331, 1171, 2011, 2281, 3181, 4621, 4861, 6151, 6211, 6961, 7951, 8521, 9151, 11251, 12211, 13411, 15661, 17491, 18121, 19141, 20641, 22531, 23071, 23581, 24631, 25411, 26041, 26161, 26431, 26641, 27091, 27271, 27361, 27691, 28201, 28621, 29221, 31891, 33151, 34261, 35491, 36451]

cp's OEIS Frontend

A274609 Primes p such that both 2p-1 and 2p^2-2p+1 are prime.

Table of values

List of values