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A174368 Primes p such that 2*p^5-+3 are also prime. 1
2, 727, 13267, 13693, 20533, 21863, 24043, 27697, 36877, 39227, 41957, 42293, 47087, 48593, 53887, 55763, 64763, 77617, 85247, 87803, 88793, 93997, 98323, 113983, 122453, 132967, 138433, 155443, 157457, 158303, 158747, 159553, 166823 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

EXAMPLE

For p=2, 2*2^5-+3=(61,67); p=727, 2*727^5-+3=(406164582184811,406164582184817).

MATHEMATICA

Select[Prime[Range[20000]], And@@PrimeQ[2 #^5 + {3, -3}]&] (* Vincenzo Librandi, Apr 10 2013 *)

PROG

(MAGMA) [p: p in PrimesUpTo(200000)|IsPrime(2*p^5-3) and IsPrime(2*p^5+3)];

CROSSREFS

Sequence in context: A103169 A082438 A062066 * A082621 A053600 A090275

Adjacent sequences:  A174365 A174366 A174367 * A174369 A174370 A174371

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Mar 17 2010

STATUS

approved

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Last modified November 13 00:25 EST 2019. Contains 329083 sequences. (Running on oeis4.)