A257966 Indices of primes in the 11th-order Fibonacci number sequence, A127624.

12, 14, 18, 32, 33, 52, 77, 100, 105, 130, 143, 180, 210, 226, 357, 377, 472, 548, 989, 1129, 1174, 1421, 1722, 4769, 6544, 6879, 7893, 18888, 21061, 24419, 25884, 32675, 53776, 62186, 109848, 110989, 123527, 160462

Offset

1,1

Comments

a(39) > 2*10^5.

Links

Table of n, a(n) for n=1..38.

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.

OEIS Wiki, Index of Prime Fibonacci Numbers and Variants

Mathematica

a={1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1}; step=11; lst={}; For[n=step+1, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], AppendTo[lst, n]]; a=RotateLeft[a]; a[[step]]=sum]; lst

Crossrefs

Cf. A127624, A257967.

Sequence in context: A078417 A107835 A375083 * A342814 A255842 A229966

Adjacent sequences: A257963 A257964 A257965 * A257967 A257968 A257969

Keyword

nonn

Author

Robert Price, May 14 2015

Status

approved