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If n is squarefree then Min{k | A070077(k) = n} else 0.
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%I #4 Mar 30 2012 18:50:20

%S 1,2,3,0,60,106,217,0,0,409,276,0,120,129,376,0,157,0,175,0,1086,899,

%T 365,0,0,1343,0,0,2630,4068,775,0,1785,313,1981,0,339,348,2727,0,6311,

%U 11216,680,0,0,422,431,0,0,0,808,0,840,0

%N If n is squarefree then Min{k | A070077(k) = n} else 0.

%e A070077(60)=5 and A070077(k)<>5 for k<60, therefore a(5)=60.

%Y Cf. A005117.

%K nonn

%O 1,2

%A _Reinhard Zumkeller_, Apr 22 2002