A230017 Prime terms in the tribonacci-like sequence, A214825.

3, 3, 7, 13, 23, 43, 79, 491, 19009, 34963, 8422747, 326099713, 3699221592878859104602113553, 77867739062209443974741001359, 63460200981504216633346603450897, 174962190954783387911511685367053207

Offset

1,1

Links

Table of n, a(n) for n=1..16.

Mathematica

a={1, 3, 3}; Print[3]; Print[3]; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[sum]]; a=RotateLeft[a]; a[[3]]=sum]

Crossrefs

Cf. A001590, A100683, A231574, A231575, A232543, A214899, A020992, A233554. A214727, A234696, A141523, A235862,A214825, A235873.

Sequence in context: A204858 A095008 A214825 * A134346 A049772 A119470

Adjacent sequences: A230014 A230015 A230016 * A230018 A230019 A230020

Keyword

nonn

Author

Robert Price, Feb 22 2014

Status

approved