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A079812 Lower of twin primes (p,p+2) such that (p*(p+2))^2 + p^2 - (p+2)^2 and (p*(p+2))^2 - p^2 + (p+2)^2 are both prime. 0
5, 5477, 20897, 27689, 36341, 39239, 43649, 51971, 77549, 109661, 121631, 122399, 152027, 153509, 159977, 163481, 189947, 211061, 245981, 285977, 308489, 470087, 497279, 512591, 520631, 522281, 560639, 570461, 573899, 580031, 581729, 591089 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

EXAMPLE

a(1) = 5 since 5 and 5+2=7 are primes and (5*7)^2 + 5^2 - 7^2 = 1201 and (5*7)^2 - 5^2 + 7^2 = 1249 are both primes.

CROSSREFS

Cf. twin primes and A079797.

Sequence in context: A072021 A196627 A013535 * A137694 A202156 A117711

Adjacent sequences:  A079809 A079810 A079811 * A079813 A079814 A079815

KEYWORD

easy,nonn

AUTHOR

Olivier Gerard (olivier.gerard(AT)gmail.com), Feb 19 2003

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Last modified February 15 05:45 EST 2012. Contains 205694 sequences.