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%I #5 Jan 16 2014 15:00:43
%S 3,5,7,13,83,281,3217,10883,1425427,55187617,24453221203,
%T 124001884480009,29872617402415741,185875267730565697,
%U 341877918058715653,44580781450601596678810171573,36012536557658790037420884825332617431175065740791
%N Primes in the tribonacci-like sequence, A141523.
%t a={3,1,1}; Print[3]; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[sum]]; a=RotateLeft[a]; a[[3]]=sum]
%Y Cf. A001590, A100683, A231574, A231575, A232543, A214899, A020992, A233554. A214727, A234696, A141523, A235862.
%K nonn
%O 1,1
%A _Robert Price_, Jan 16 2014