A257228 Primes in the 10th-order Fibonacci numbers A122265.

2, 3876345660966505581780035851822613413637045687942554538584103751904155528656612320450718024564637501177857, 15784273697726525594915158437704910106795669967932151790483411869827615323130147795459165734845011296559523773

Offset

1,1

Comments

a(4) is too large to display here. It has 731 digits and is the 2440th term in A122265.

Links

Table of n, a(n) for n=1..3.

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

OEIS Wiki, Index to OEIS Section Fi

Mathematica

a={0, 0, 0, 0, 0, 0, 0, 0, 0, 1}; step=10; offset=0; lst={}; For[n=step+offset, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], AppendTo[lst, sum]]; a=RotateLeft[a]; a[[step]]=sum]; lst

Crossrefs

Cf. A122265, A257227.

Sequence in context: A154424 A100267 A176935 * A065803 A160540 A186718

Adjacent sequences: A257225 A257226 A257227 * A257229 A257230 A257231

Keyword

nonn

Author

Robert Price, Apr 18 2015

Status

approved