A243630 Primes p such that 2*p^3 - 3 is also prime.

2, 7, 11, 13, 47, 101, 107, 151, 163, 167, 251, 257, 401, 443, 467, 521, 571, 641, 653, 673, 797, 907, 911, 971, 983, 997, 1013, 1151, 1153, 1181, 1187, 1223, 1231, 1277, 1291, 1303, 1361, 1433, 1481, 1511, 1597, 1637, 1723, 1741, 1811, 1951, 2027, 2081, 2083, 2141, 2287, 2311

Offset

1,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 1..1000

Mathematica

Select[Prime[Range[2500]], PrimeQ[2 #^3 - 3] &]

Prog

(Magma) [p: p in PrimesUpTo(2500) | IsPrime(2*p^3 - 3)];

Crossrefs

Cf. A063908, A023204, A153507, A174363, A243595.

Sequence in context: A209630 A235266 A140548 * A341076 A287107 A308550

Adjacent sequences: A243627 A243628 A243629 * A243631 A243632 A243633

Keyword

nonn,easy,less

Author

Vincenzo Librandi, Jun 08 2014

Status

approved