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A062640
Numbers k such that 74^k - 73^k is prime.
0
OFFSET
1,1
COMMENTS
a(4) > 10^5. - Robert Price, May 23 2014
PROG
(PARI) is(n)=ispseudoprime(74^n-73^n) \\ Charles R Greathouse IV, Jun 13 2017
KEYWORD
nonn,hard,bref
AUTHOR
Mike Oakes, May 18 2001, May 19 2001
STATUS
approved