%I #5 Mar 30 2012 18:56:42
%S 52,101,150,199,248,297,346,364,395,444,493,542,591,640,689,707,738,
%T 787,836,885,934,983,1032,1050,1081,1130,1179,1228,1277,1326,1375,
%U 1393,1424,1473,1522,1571,1620,1669,1718,1736,1767,1816
%N Numbers n such that string 0,3 occurs in the base 7 representation of n but not of n-1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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