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A108364
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Integers k such that 10^k - 33 is prime.
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0
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2, 3, 4, 10, 18, 46, 48, 121, 154, 158, 170, 196, 211, 250, 294, 316, 320, 663, 975, 1165, 1351, 4126, 4270, 5724, 7156, 15025, 19132, 25035, 36174, 77418
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OFFSET
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1,1
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COMMENTS
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See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "99967".
The next term, if one exists, is > 100000. - Robert Price, Apr 25 2011
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LINKS
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EXAMPLE
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k=2 is a term because 10^2 - 33 = 67 (prime).
k=48 is a term because 10^48 - 33 = 999999999999999999999999999999999999999999999967 (prime).
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MATHEMATICA
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For[n = 1, n < 1000, n++, If[PrimeQ[10^n - 33], Print[n]]] (Steinerberger)
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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a(22)-a(29) extracted from Makoto Kamada website by Robert Price, Dec 06 2010
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STATUS
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approved
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