A105763 Prime Lucas 4-step numbers, A073817.

3, 7, 191, 367, 36319, 260111, 6921503, 49570747, 12893894812259, 24019714105325502367, 172025522413867986317, 17007925267174811186047, 3132517481738616046273627839643

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

Crossrefs

Cf. A104577 (indices of prime Lucas 4-step numbers).

Sequence in context: A227890 A114789 A128273 * A291352 A132564 A057619

Adjacent sequences: A105760 A105761 A105762 * A105764 A105765 A105766

Keyword

nonn

Author

T. D. Noe, Apr 22 2005

Status

approved