OFFSET
1,1
COMMENTS
a(10) has 119 digits and thus is too large to display here. It corresponds to A214828(448).
MATHEMATICA
a={1, 6, 6); For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[sum]]; a=RotateLeft[a]; a[[3]]=sum]
Select[LinearRecurrence[{1, 1, 1}, {1, 6, 6}, 350], PrimeQ] (* Harvey P. Dale, Jul 21 2018 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert Price, May 17 2014
STATUS
approved