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A108312
Integers n such that 10^n + 27 is prime.
14
1, 2, 83, 167, 242, 14081, 65537
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".
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 *)
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