A216573 Numbers k such that Fibonacci(k) is prime and can be written in the form a^2 + 10*b^2.

11, 131, 359, 431, 9311, 25561, 35999, 37511, 81839, 130021, 148091, 397379, 590041, 593689, 1803059, 1968721

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Blair Kelly, Factorizations of Fibonacci and Lucas numbers

Mohammed Taous, On the 2-Class Group of Q(sqrt(5pFp)) Where Fp is a Prime Fibonacci Number, Fibonacci Quart. 55 (2017), no. 5, 192-200. See the NM's in Figure 1 p. 8.

Crossrefs

Cf. A000045, A001605.

Sequence in context: A099677 A142187 A201484 * A140004 A100758 A083763

Adjacent sequences: A216570 A216571 A216572 * A216574 A216575 A216576

Keyword

nonn,more

Author

V. Raman, Sep 08 2012

Status

approved