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A074304 Numbers n such that Lucas(2n)/3 is prime. 2
5, 7, 13, 19, 31, 43, 89, 101, 229, 293, 457, 541, 653, 659, 1553, 2003, 2707, 2749, 7159, 10289, 26267 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Some of the larger entries may only correspond to probable primes.

LINKS

Table of n, a(n) for n=1..21.

Ron Knott, The Mathematics of the Fibonacci series.

Ron Knott, Pi and the Fibonacci Numbers.

CROSSREFS

Cf. A074281

Sequence in context: A218011 A242255 A006512 * A264865 A293712 A297674

Adjacent sequences:  A074301 A074302 A074303 * A074305 A074306 A074307

KEYWORD

nonn

AUTHOR

Shane Findley, Sep 21 2002

EXTENSIONS

More terms found by David Broadhurst, Bouk de Water, and Shane Findley, Oct 31 2002

STATUS

approved

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Last modified February 16 21:37 EST 2020. Contains 331975 sequences. (Running on oeis4.)