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A087899
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Primes associated with A087898.
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2
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5, 29, 389, 8969, 331889, 17590169, 1178541389, 93104769809, 14617448860169, 2528818652809409, 483004362686597309, 95151859449259670069, 26357065067444928609389, 7406335283952024939238589, 3414320565901883496988989989, 1635459551067002195057726205209
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OFFSET
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1,1
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LINKS
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FORMULA
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a(n) = -1 + Product_{k=1..n-1} A087898(k).
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MATHEMATICA
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s = {}; ps = {2}; Do[r = Times @@ ps; p = ps[[-1]]; While[p = NextPrime[p]; ! PrimeQ[r*p - 1]]; AppendTo[ps, p]; AppendTo[s, r*p - 1], {15}]; s (* Amiram Eldar, Jan 19 2023 *)
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CROSSREFS
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KEYWORD
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nonn
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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