A254412 Indices of primes in the 8th-order Fibonacci number sequence, A123526.

11, 13, 15, 24, 30, 33, 57, 104, 121, 132, 149, 158, 178, 220, 295, 389, 1070, 1101, 1373, 1761, 1778, 2333, 2731, 4541, 5189, 5237, 5738, 8025, 8787, 10561, 11783, 13435, 14638, 15337, 20985, 21722, 24770, 31009, 57367, 65877, 129773, 134630, 167020

Offset

1,1

Comments

a(44) > 2*10^5.

Links

Table of n, a(n) for n=1..43.

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={1, 1, 1, 1, 1, 1, 1, 1}; step=8; 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. A001590, A001631, A100683, A231574, A231575, A232542, A214899, A230607, A020992, A232498, A214727, A081172, A214752, A141523, A214825, A235862, A000288, A000322, A000383, A249413, A060455, A079262, A123526, A254413.

Sequence in context: A289699 A049722 A099481 * A215778 A211021 A364003

Adjacent sequences: A254409 A254410 A254411 * A254413 A254414 A254415

Keyword

nonn,more

Author

Robert Price, Jan 30 2015

Status

approved