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A255536
Indices of primes in the 9th-order Fibonacci number sequence, A251752.
1
10, 11, 21, 29, 301, 57089
OFFSET
1,1
COMMENTS
a(7) > 2*10^5.
LINKS
Tony D. Noe and Jonathan Vos Post, Primes in Fibonacci n-step and Lucas n-step Sequences, J. of Integer Sequences, Vol. 8 (2005), Article 05.4.4
MATHEMATICA
a={0, 1, 0, 0, 0, 0, 0, 0, 0}; step=9; lst={}; For[n=step, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], AppendTo[lst, n]]; a=RotateLeft[a]; a[[step]]=sum]; lst
KEYWORD
nonn,more
AUTHOR
Robert Price, Feb 24 2015
STATUS
approved