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%I #5 Dec 05 2013 19:56:20
%S 2,3,255,1046,230584301136334848,7065193045869401568154708608
%N a(n) is the smallest integer > 1 of the form sum_{i = 1..n} x^(1/i)/n.
%C x is given by A106441(n)^A003418(n).
%e a(3) = [x+x^(1/2)+x^(1/3)]/3 for x = 3^6, i.e. a(3) =
%e (729+27+9)/3 = 255.
%K nonn,easy
%O 1,1
%A _Amarnath Murthy_, Sep 03 2003
%E Edited and extended by _David Wasserman_, May 02 2005
%E Next term has 355 digits.