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Number of Pierpont primes less than 10^(2^n).
1

%I #8 Mar 09 2014 13:42:41

%S 4,10,25,58,125,250,505,1020,2075,4227,8597,17213

%N Number of Pierpont primes less than 10^(2^n).

%D Computed by Chris Caldwell.

%H Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/PierpontPrime.html">Pierpont Prime</a>

%Y Cf. A005109, A113420.

%K nonn

%O 0,1

%A _Eric W. Weisstein_, Oct 29 2005

%E a(10) from _Eric W. Weisstein_, Nov 01 2005

%E a(11) from _Donovan Johnson_, Feb 13 2010