A256499 Primes in the 9th-order Fibonacci numbers A127193.

17, 257, 260609, 16580657, 527972353, 1054904321, 33590968001, 267934222337, 2137144350721, 279308966066204560897, 4904838477959792746889087209953222309396481, 623502124433801536413569315448615191583313921, 9936775914719167257001281976859570231260282873

Offset: 1

Author

Robert Price, Mar 31 2015

Keywords

• nonn

Comments

a(14) is too large to display here. It has 53 digits and is the 182nd term in A127193.

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.
• OEIS Wiki, Index of Prime Fibonacci Numbers and Variants
• OEIS Wiki, Index to OEIS Section Fi

Crossrefs

Cf. A127193, A256498.

Programs

Mathematica

a={1,1,1,1,1,1,1,1,1}; step=9; offset=1; lst={}; For[n=step+offset,n<=1000,n++, sum=Plus@@a; If[PrimeQ[sum], AppendTo[lst,sum]]; a=RotateLeft[a]; a[[step]]=sum]; lst