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A243630 Primes p such that 2*p^3 - 3 is also prime. 1
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 (list; graph; refs; listen; history; text; internal format)
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 * A287107 A308550 A018308

Adjacent sequences:  A243627 A243628 A243629 * A243631 A243632 A243633

KEYWORD

nonn,easy,less

AUTHOR

Vincenzo Librandi, Jun 08 2014

STATUS

approved

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Last modified September 20 22:20 EDT 2019. Contains 327252 sequences. (Running on oeis4.)