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A107083
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Integers n such that 10^n + 31 is prime.
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25
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1, 2, 3, 14, 18, 44, 54, 89, 469, 2060, 2985, 6197, 16452, 19393, 21205, 49657, 74670, 76374
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OFFSET
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1,2
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COMMENTS
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The next term, if one exists, is >100000. - Robert Price, Apr 26 2011
See Kamada link - primecount.txt for terms, primesize.txt for discovery details including proofs of primality - search on "10031".
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LINKS
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EXAMPLE
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For n = 3 we get 10^3 + 31 = 1000 + 31 = 1031, which is prime.
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MATHEMATICA
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CROSSREFS
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KEYWORD
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more,nonn
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AUTHOR
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Julien Peter Benney (jpbenney(AT)ftml.net), Jun 08 2005
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EXTENSIONS
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STATUS
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approved
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