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A154664 Numbers n such that n!^2-+7493 are primes. 1
3, 4, 5, 6, 12 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

COMMENTS

Next term is larger than 72

MATHEMATICA

lst={}; a=7493; Do[If[PrimeQ[n!^2-a]&&PrimeQ[n!^2+a], AppendTo[lst, n]], {n, 3*4!}]; lst

CROSSREFS

Cf. A144046, A154660, A154661, A154662, A154663

Sequence in context: A047425 A048989 A103402 * A191750 A034448 A069184

Adjacent sequences:  A154661 A154662 A154663 * A154665 A154666 A154667

KEYWORD

nonn

AUTHOR

Vladimir Orlovsky (4vladimir(AT)gmail.com), Jan 13 2009

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Last modified February 15 10:56 EST 2012. Contains 205763 sequences.