OFFSET
1,1
COMMENTS
Position of prime numbers in A082116.
FORMULA
G.f.: x*(3*x^2+4*x+3)*(x^2-x+1)/((x+1)*(x^2+1)*(x-1)^2). - Alois P. Heinz, Jul 08 2019
MATHEMATICA
Select[Range[160], MemberQ[{2, 3}, Mod[Fibonacci[#], 5]] &]
PROG
(Magma) [n: n in [0..200] | IsPrime(Fibonacci(n) mod 5)];
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Vincenzo Librandi, Jul 06 2019
STATUS
approved