OFFSET
1,1
COMMENTS
Primes of the form 1+A001654(k) for some k, as actually generated by k=1, 2, 3, 5, 9, 53, 71,....
Also primes of the form Fibonacci(k)*Fibonacci(k+1)+1. - Colin Barker, Apr 08 2016
The next term (a(8)) has 1995 digits. - Harvey P. Dale, May 15 2018
MATHEMATICA
q=0; lst={}; Do[f=Fibonacci[n]; If[PrimeQ[f*q+1], AppendTo[lst, f*q+1]]; q=f, {n, 3*6!}]; lst
Select[Times@@@Partition[Fibonacci[Range[100]], 2, 1]+1, PrimeQ] (* Harvey P. Dale, May 15 2018 *)
PROG
(PARI) for(k=1, 1000, if(isprime(p=fibonacci(k)*fibonacci(k+1)+1), print1(p, ", "))) \\ Colin Barker, Apr 08 2016
CROSSREFS
KEYWORD
nonn
AUTHOR
Vladimir Joseph Stephan Orlovsky, Jul 21 2009
EXTENSIONS
Slightly edited by R. J. Mathar, Jul 25 2009
STATUS
approved