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%I #5 Mar 30 2012 18:39:22
%S 6,6,12,20,20,24,36,45,48,48,60,60,72,72,72,72,80,90,90,120,120,120,
%T 120,120,120,120,120,120,144,144,144,144,144,180,180,180,180,180,180,
%U 180,180,240,240,240,240,240,240,240,240,240,240,240,240,240,240,360,360
%N Least k such that k^n divides A000254(k).
%K nonn
%O 1,1
%A _Benoit Cloitre_, Mar 09 2004