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A242316 Prime terms in the tribonacci-like sequence A214826. 0
17, 103, 1764391, 8907752079422393063, 28959877095025359725108610631647478770525190687597954707985655095645523042346644747326776183477265033 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

a(6) is too large to appear here, having 124 digits.  It corresponds to A214826(467).

LINKS

Table of n, a(n) for n=1..5.

MATHEMATICA

a={1, 4, 4}; 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, 4, 4}, 400], PrimeQ] (* Harvey P. Dale, Mar 17 2016 *)

CROSSREFS

Cf. A001590, A100683, A231574, A231575, A232543, A214899, A020992, A233554. A214727, A234696, A141523, A235862,A214825, A235873 A214826, A242315.

Sequence in context: A142266 A214632 A160219 * A329386 A095785 A194131

Adjacent sequences:  A242313 A242314 A242315 * A242317 A242318 A242319

KEYWORD

nonn

AUTHOR

Robert Price, May 10 2014

STATUS

approved

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Last modified September 28 10:48 EDT 2021. Contains 347714 sequences. (Running on oeis4.)