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A155738 Primes p such that 4*p^2+2*p-1 is also prime 3
2, 3, 5, 13, 19, 23, 43, 47, 67, 79, 103, 109, 149, 157, 179, 193, 239, 353, 373, 397, 419, 487, 499, 503, 523, 547, 563, 569, 587, 619, 677, 683, 787, 797, 839, 853, 863, 929, 1013, 1093, 1193, 1229, 1289, 1303, 1319, 1423, 1433, 1499, 1553, 1619, 1669, 1733 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

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

FORMULA

A155736 INTERSECT A000040.  [R. J. Mathar, Jan 05 2011]

MATHEMATICA

Select[Prime[Range[400]], PrimeQ[4#^2+2#-1]&]  (* Harvey P. Dale, Mar 22 2011 *)

PROG

(MAGMA) [p: p in PrimesUpTo(1800)| IsPrime(4*p^2 + 2*p - 1)]; // Vincenzo Librandi, Oct 30 2012

CROSSREFS

Cf. A155736, A155737.

Sequence in context: A087763 A104735 A157976 * A215371 A164958 A145908

Adjacent sequences:  A155735 A155736 A155737 * A155739 A155740 A155741

KEYWORD

nonn,easy

AUTHOR

Vincenzo Librandi, Jan 26 2009

STATUS

approved

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Last modified December 22 17:45 EST 2014. Contains 252365 sequences.