%I #3 Mar 30 2012 18:50:55

%S 1,2,3,4,5,6,7,8,9,10,10,11,12,13,14,15,16,17,18,19,20,20,20,21,22,23,

%T 24,25,25,26,26,27,27,28,29,30,31,32,33,34,34,35,35,35,36,36,36,37,38,

%U 39,40,41,41,42,42,43,44,44,44,45,45,45,46,47,48,48,48,49,49,50,50,51

%N Number of numbers having only factors that are Pierpont primes.

%C Partial sums of A122261.

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

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Aug 29 2006