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%I #7 Oct 15 2013 22:32:26
%S 1,54,2,12,3,8,4792,75991,284736,6561003,51448375,964669618,
%T 18320500423
%N a(n) is the smallest number x such that the number of prime powers (including primes, excluding 1), in the neighborhood of x with radius ceiling(log(x)), equals n.
%C With increasing n the radius of log(n) slowly increases, while frequency of prime-powers decreases.
%C No more terms < 369*10^8. - _David Wasserman_, Nov 16 2007
%e a[8]=284736: because in [284723,284749] around a(8),
%e 8 prime(powers) occur first,with radius=r=13;
%e a[0]=1;a[1]=54 means that in [50,58] only 53 is prime,r=4.
%Y Cf. A096508-A096512.
%Y Cf. A096509-A096523.
%K more,nonn
%O 0,2
%A _Labos Elemer_, Jul 12 2004
%E 4 more terms from _David Wasserman_, Nov 16 2007
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