A277290 Prime-indexed primes p such that Lucas(p) is prime.

5, 11, 17, 31, 41, 353, 617, 4787, 5851, 148091, 637751

Offset

1,1

Links

Table of n, a(n) for n=1..11.

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