A070179 - cp's OEIS frontend

A070179 Primes p such that x^2 = 2 has a solution mod p, but x^(2^2) = 2 has no solution mod p.

n	a(n)
1	17
2	41
3	97
4	137
5	193
6	241
7	313
8	401
9	409
10	433
11	449
12	457
13	521
14	569
15	641
16	673
17	761
18	769
19	809
20	857
21	929
22	953
23	977
24	1009
25	1129
26	1297
27	1321
28	1361
29	1409
30	1489
31	1657
32	1697
33	1873
34	1993
35	2017
36	2081
37	2137
38	2153
39	2161
40	2297
41	2377
42	2417
43	2521
44	2609
45	2617
46	2633
47	2713

[17, 41, 97, 137, 193, 241, 313, 401, 409, 433, 449, 457, 521, 569, 641, 673, 761, 769, 809, 857, 929, 953, 977, 1009, 1129, 1297, 1321, 1361, 1409, 1489, 1657, 1697, 1873, 1993, 2017, 2081, 2137, 2153, 2161, 2297, 2377, 2417, 2521, 2609, 2617, 2633, 2713]

cp's OEIS Frontend

A070179 Primes p such that x^2 = 2 has a solution mod p, but x^(2^2) = 2 has no solution mod p.

Table of values

List of values