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A108331
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Integers n such that 10^n-87 is prime.
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2
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OFFSET
| 1,1
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COMMENTS
| See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable/proven prime - search on "99913".
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LINKS
| Makoto Kamada, List of near-repdigit-related prime numbers.
Index entries for primes involving repunits.
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EXAMPLE
| n = 2 is a member because: 10^2-87 = 100-87 = 13, which is prime.
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CROSSREFS
| Cf. A089675, A095714, A092767.
Sequence in context: A129061 A011541 A080642 * A162554 A167840 A113917
Adjacent sequences: A108328 A108329 A108330 * A108332 A108333 A108334
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KEYWORD
| more,nonn
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AUTHOR
| Julien Peter Benney (jpbenney(AT)ftml.net), Jun 30 2005
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EXTENSIONS
| a(4) from Kamada data by Robert Price (pamandbobprice(AT)yahoo.com), Dec 13 2010
Edited by Ray Chandler (rayjchandler(AT)sbcglobal.net), Dec 23 2010
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