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A176960 Primes p such that p^2 - 8, p^2 - 6 and p^2 - 2 are prime. 0
5, 7, 467, 4373, 5987, 11933, 13463, 13907, 14747, 19843, 20407, 22307, 24677, 36563, 37693, 40213, 41603, 42397, 43003, 44203, 56747, 58963, 66047, 66173, 87407, 91033, 98597, 98873, 101183, 115523, 122323, 124703, 126107, 139333 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

[In French: "avorteurs de quadruplets".]

p*p is the lonely composite number in quadruplet (10k+1, 10k+3, 10k+7, 10k+9). Necessary: p^2 = 10k + 9.

LINKS

Table of n, a(n) for n=1..34.

PROG

(MAGMA) [p: p in PrimesUpTo(1000000)| IsPrime(p^2-8) and IsPrime(p^2-6) and IsPrime (p^2-2)] // Vincenzo Librandi, Aug 06 2010

CROSSREFS

Sequence in context: A196331 A159019 A059394 * A114368 A260830 A260827

Adjacent sequences:  A176957 A176958 A176959 * A176961 A176962 A176963

KEYWORD

nonn

AUTHOR

Alain MAROT (marot.alain(AT)orange.fr), Apr 29 2010

EXTENSIONS

Corrected (5 inserted) and extended by Vincenzo Librandi, Aug 06 2010

STATUS

approved

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Last modified February 17 21:46 EST 2020. Contains 332006 sequences. (Running on oeis4.)