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A243622
Indices of primes in A214829.
7
1, 2, 4, 10, 11, 12, 13, 58, 63, 89, 132, 157, 426, 457, 506, 613, 1839, 1936, 2042, 2355, 3178, 3782, 8556, 8688, 22152, 23232, 44074, 71770, 222666
OFFSET
1,2
COMMENTS
a(30) > 222666.
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
MATHEMATICA
a={1, 7, 7}; Print["1"]; Print["2"]; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[n]]; a=RotateLeft[a]; a[[3]]=sum]
KEYWORD
nonn,more
AUTHOR
Robert Price, Jun 07 2014
EXTENSIONS
a(27) corrected by Robert Price, May 22 2019
a(29) from Robert Price, May 23 2019
STATUS
approved