A105761 - OEIS

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A105761

Prime Fibonacci 7-step numbers, A066178.

2, 127, 31489

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

The next term is the 30673-digit probable prime 59456197869789581...206057955817 that is the 102490th term of the heptanacci sequence (using the definition in Noe-Post and Weisstein). This is too large to include here.

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

Eric Weisstein's World of Mathematics, Fibonacci n-Step Number

MATHEMATICA

a={1, 0, 0, 0, 0, 0, 0}; lst={}; Do[s=Plus@@a; a=RotateLeft[a]; a[[ -1]]=s; If[PrimeQ[s], AppendTo[lst, s]], {n, 100}]; lst

CROSSREFS

Sequence in context: A075596 A092832 A181001 * A157473 A004864 A106319

Adjacent sequences: A105758 A105759 A105760 * A105762 A105763 A105764

KEYWORD

bref,nonn

AUTHOR

T. D. Noe, Apr 22 2005, May 13 2008

STATUS

approved