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 A108312 Integers n such that 10^n + 27 is prime. 14
 1, 2, 83, 167, 242, 14081, 65537 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS The next term, if one exists, is >100000. - Robert Price, May 24 2010 See Kamada link - primecount.txt for terms, primesize.txt for discovery details including probable or proved primes - search on "10027". LINKS Makoto Kamada, List of near-repdigit-related prime numbers. EXAMPLE For n=2 we have 10^2 + 27 = 100 + 27 = 127, which is prime. MATHEMATICA Do[ If[ PrimeQ[10^n + 27], Print[n]], {n, 3000}] (* Robert G. Wilson v, Jul 01 2005 *) CROSSREFS Cf. A049054, A088274, A088275, A095688, A107083, A108049, A108050, A108052, A108054. Sequence in context: A090434 A062603 A007353 * A175449 A171399 A037069 Adjacent sequences:  A108309 A108310 A108311 * A108313 A108314 A108315 KEYWORD more,nonn AUTHOR Julien Peter Benney (jpbenney(AT)ftml.net), Jun 29 2005 EXTENSIONS a(6)=14081 from Robert Price, Mar 22 2010 Edited by Ray Chandler, Dec 23 2010 a(7)=65537 from Robert Price, Jan 29 2011 STATUS approved

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Last modified September 18 04:22 EDT 2021. Contains 347508 sequences. (Running on oeis4.)