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A105765
Prime Lucas 5-step numbers, A074048.
1
3, 7, 31, 113, 223, 439, 863, 6553, 641449337, 18837477823, 40276345611255837298559, 58893004546665606516457357571, 9774215601155945008361439560567878777
OFFSET
1,1
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
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
KEYWORD
nonn
AUTHOR
T. D. Noe, Apr 22 2005
STATUS
approved