OFFSET
1,1
COMMENTS
a(13) has 58 digits and thus is too large to display here. It corresponds to A214831(216).
MATHEMATICA
a={1, 9, 9}; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[sum]]; a=RotateLeft[a]; a[[3]]=sum]
CROSSREFS
KEYWORD
nonn
AUTHOR
Robert Price, Jul 08 2014
STATUS
approved