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A216559 Numbers n such that the n-th Fibonacci number is prime and can be written in the form a^2 + 5*b^2. 0
11, 29, 131, 359, 431, 449, 509, 569, 571, 2971, 9311, 14431, 25561, 35999, 37511, 81839, 104911, 130021, 148091, 397379, 433781, 590041, 593689, 604711, 1803059, 1968721 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..26.

Blair Kelly, Factorizations of Fibonacci and Lucas numbers

CROSSREFS

Cf. A000045, A001605.

Sequence in context: A135064 A179502 A053703 * A099911 A118638 A088460

Adjacent sequences:  A216556 A216557 A216558 * A216560 A216561 A216562

KEYWORD

nonn

AUTHOR

V. Raman, Sep 08 2012

STATUS

approved

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Last modified July 31 13:25 EDT 2021. Contains 346373 sequences. (Running on oeis4.)