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A242315
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Indices of primes in the tribonacci-like sequence A214826.
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1
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4, 7, 23, 71, 379, 467, 596, 6372, 10100, 11660, 23099, 25419, 26011, 36588, 76895, 112867
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OFFSET
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1,1
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COMMENTS
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a(17) > 2*10^5.
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LINKS
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MATHEMATICA
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a={1, 4, 4}; For[n=3, n<=1000, n++, sum=Plus@@a; If[PrimeQ[sum], Print[n]]; a=RotateLeft[a]; a[[3]]=sum]
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CROSSREFS
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Cf. A001590, A100683, A231574, A231575, A232542, A214899, A230607, A020992, A232498, A214727, A081172, A214752, A141523,A214825, A235862, A214826.
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KEYWORD
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nonn
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AUTHOR
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STATUS
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approved
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