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A249635
Indices of prime Fibonacci 6-step numbers, A001592.
2
7, 40, 41, 96, 664, 6095, 8419, 11471, 13690, 38835, 49832, 97152
OFFSET
1,1
COMMENTS
This sequence is similar to A105758 but uses the indexing scheme defined by A001592, whose indices start with 0.
a(13) > 3*10^5.
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, Fibonacci n-Step Number
FORMULA
a(n) = A105758 (n) + 4.
MATHEMATICA
a = {0, 0, 0, 0, 0, 1}; For[n = 6, n ≤ 1000, n++, sum = Plus @@ a;
If[PrimeQ[sum], Print[n]]; a = RotateLeft[a]; a[[6]] = sum]
CROSSREFS
Sequence in context: A135059 A203200 A165700 * A164135 A119056 A164083
KEYWORD
nonn,more
AUTHOR
Robert Price, Nov 02 2014
STATUS
approved