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%I #5 Mar 30 2012 18:56:43
%S 107,207,307,407,507,607,707,807,907,1007,1070,1107,1207,1307,1407,
%T 1507,1607,1707,1807,1907,2007,2070,2107,2207,2307,2407,2507,2607,
%U 2707,2807,2907,3007,3070,3107,3207,3307,3407,3507
%N Numbers n such that string 0,7 occurs in the base 10 representation of n but not of n-1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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