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A153507 Primes p such that 2*p^3 + 3 is also prime. 5
2, 13, 17, 19, 23, 29, 43, 53, 83, 127, 157, 233, 239, 283, 347, 433, 509, 523, 617, 647, 769, 773, 823, 859, 883, 919, 937, 1093, 1117, 1163, 1213, 1223, 1327, 1483, 1499, 1627, 1657, 1709, 1777, 1823, 1877, 1907, 1913, 1999, 2069, 2129, 2137, 2203, 2357 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

MAPLE

a := proc (n) if isprime(n) = true and isprime(2*n^3+3) = true then n else end if end proc: seq(a(n), n = 1 .. 2500); # Emeric Deutsch, Jan 21 2009

MATHEMATICA

Select[Prime[Range[500]], PrimeQ[2#^3 + 3] &] (* Harvey P. Dale, Jan 12 2011 *)

PROG

(MAGMA)[p: p in PrimesUpTo(2500) | IsPrime(2*p^3 + 3)]; // Vincenzo Librandi, Oct 15 2012

CROSSREFS

Sequence in context: A065245 A158845 A163786 * A124277 A038889 A152652

Adjacent sequences:  A153504 A153505 A153506 * A153508 A153509 A153510

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Dec 28 2008

EXTENSIONS

Extended by Emeric Deutsch, Jan 21 2009

STATUS

approved

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Last modified August 10 19:52 EDT 2020. Contains 336381 sequences. (Running on oeis4.)