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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
Subsequence of A006450. See also A168033.
Sequence in context: A087373 A155030 A030468 * A085634 A157478 A297583
KEYWORD
nonn,hard,more
AUTHOR
Bobby Jacobs, Oct 21 2016
STATUS
approved

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Last modified April 23 13:11 EDT 2024. Contains 371913 sequences. (Running on oeis4.)