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A255531 Indices of primes in the 9th-order Fibonacci number sequence, A251747. 1
10, 16, 116, 236, 316, 1376, 5066, 103696, 120949 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,1
COMMENTS
a(10) > 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, 0, 0, 0, 0, 0, 1, 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
Flatten[Position[LinearRecurrence[Table[1, {9}], {0, 0, 0, 0, 0, 0, 1, 0, 0}, 125000], _?PrimeQ]]-1 (* Harvey P. Dale, Nov 29 2017 *)
CROSSREFS
Sequence in context: A056848 A219854 A167331 * A157159 A176664 A256346
KEYWORD
nonn,more
AUTHOR
Robert Price, Feb 24 2015
STATUS
approved

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Last modified March 28 05:39 EDT 2024. Contains 371235 sequences. (Running on oeis4.)