%I #3 Oct 01 2013 17:58:09
%S 5,31,211,1291,7759,46649,279919,1679609,10077689,60466169,362796997,
%T 2176782317,13060693999,78364164083,470184984569,2821109907437,
%U 16926659444687,101559956668403,609359740010477,3656158440062969
%N Largest prime <= 6^n.
%o (PARI) g(n,b) = for(x=0,n,print1(precprime(b^x)","))
%K easy,nonn
%O 1,1
%A _Cino Hilliard_, Mar 03 2005