A375490 - cp's OEIS frontend

A375490 Odd numbers k > 1 such that gcd(3,k) = 1 and 3^((k-1)/2) == -(3/k) (mod k), where (3/k) is the Jacobi symbol (or Kronecker symbol); Euler pseudoprimes to base 3 (A262051) that are not Euler-Jacobi pseudoprimes to base 3 (A048950).

n	a(n)
1	1541
2	2465
3	4961
4	30857
5	31697
6	72041
7	83333
8	162401
9	192713
10	206981
11	258017
12	359369
13	544541
14	565001
15	574397
16	653333
17	929633
18	1018601
19	1032533
20	1133441
21	1351601
22	1373633
23	1904033
24	1953281
25	2035661
26	2797349
27	2864501
28	3264797
29	3375041
30	3554633
31	3562361
32	3636161

[1541, 2465, 4961, 30857, 31697, 72041, 83333, 162401, 192713, 206981, 258017, 359369, 544541, 565001, 574397, 653333, 929633, 1018601, 1032533, 1133441, 1351601, 1373633, 1904033, 1953281, 2035661, 2797349, 2864501, 3264797, 3375041, 3554633, 3562361, 3636161]

cp's OEIS Frontend

A375490 Odd numbers k > 1 such that gcd(3,k) = 1 and 3^((k-1)/2) == -(3/k) (mod k), where (3/k) is the Jacobi symbol (or Kronecker symbol); Euler pseudoprimes to base 3 (A262051) that are not Euler-Jacobi pseudoprimes to base 3 (A048950).

Table of values

List of values