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 A277290 Prime-indexed primes p such that Lucas(p) is prime. 2
 5, 11, 17, 31, 41, 353, 617, 4787, 5851, 148091, 637751 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,1 LINKS FORMULA a(n) = prime(A123677(n)). a(n) = prime(prime(A123678(n)). EXAMPLE 17 = A000040(7), with 7 itself being a prime, and A000032(17) = 3571, a prime, thus 17 is included in this sequence. CROSSREFS Cf. A000032, A000040, A123677, A123678. Subsequence of A006450. See also A168033. Sequence in context: A087373 A155030 A030468 * A085634 A157478 A297583 Adjacent sequences: A277287 A277288 A277289 * A277291 A277292 A277293 KEYWORD nonn,hard,more AUTHOR Bobby Jacobs, Oct 21 2016 STATUS approved

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Last modified December 5 02:30 EST 2022. Contains 358572 sequences. (Running on oeis4.)