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A105766
Indices of prime Lucas 6-step numbers, A074584.
1
2, 3, 5, 8, 11, 32, 37, 46, 123, 237, 332, 408, 772, 827, 1523, 5610, 11273, 14505
OFFSET
1,1
COMMENTS
No other n < 30000.
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, -1, 6}; lst={}; Do[s=Plus@@a; a=RotateLeft[a]; a[[ -1]]=s; If[PrimeQ[s], AppendTo[lst, n]], {n, 30000}]; lst
CROSSREFS
Cf. A105767 (prime Lucas 6-step numbers).
Sequence in context: A334741 A259973 A092362 * A056695 A342746 A287006
KEYWORD
nonn
AUTHOR
T. D. Noe, Apr 22 2005
STATUS
approved