A105765 Prime Lucas 5-step numbers, A074048.

3, 7, 31, 113, 223, 439, 863, 6553, 641449337, 18837477823, 40276345611255837298559, 58893004546665606516457357571, 9774215601155945008361439560567878777

Offset

1,1

Links

Table of n, a(n) for n=1..13.

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, Lucas n-Step Number

Mathematica

a={-1, -1, -1, -1, 5}; lst={}; Do[s=Plus@@a; a=RotateLeft[a]; a[[ -1]]=s; If[PrimeQ[s], AppendTo[lst, s]], {n, 1000}]; lst

Crossrefs

Cf. A105764 (indices of prime Lucas 5-step numbers).

Sequence in context: A173062 A373755 A306831 * A061095 A357296 A103901

Adjacent sequences: A105762 A105763 A105764 * A105766 A105767 A105768

Keyword

nonn

Author

T. D. Noe, Apr 22 2005

Status

approved