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A122727
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Numbers n such that abs(9^n - 2^11) is prime.
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0
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1, 3, 4, 6, 15, 153, 159, 166, 832, 1123, 1294
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OFFSET
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1,2
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LINKS
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EXAMPLE
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For n = 1, abs(9^1-2^11) = 2039 which is prime. So 1 is the first entry.
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MATHEMATICA
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Select[Range[1300], PrimeQ[Abs[9^#-2^11]]&] (* Harvey P. Dale, Apr 20 2022 *)
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PROG
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(PARI) g(n) = for(x=1, n, y=abs(9^x-2^11); if(ispseudoprime(y), print1(x", ")))
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CROSSREFS
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KEYWORD
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easy,nonn
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AUTHOR
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STATUS
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approved
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