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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; text; internal format)
 OFFSET 1,1 LINKS Table of n, a(n) for n=1..32. 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 A292334 A202156 Adjacent sequences: A079809 A079810 A079811 * A079813 A079814 A079815 KEYWORD easy,nonn AUTHOR Olivier Gérard, Feb 19 2003 STATUS approved

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Last modified May 27 15:21 EDT 2024. Contains 372861 sequences. (Running on oeis4.)