%I #5 Mar 30 2012 18:56:45
%S 29,78,127,176,209,225,274,323,372,421,470,519,552,568,617,666,715,
%T 764,813,862,895,911,960,1009,1058,1107,1156,1205,1238,1254,1303,1352,
%U 1401,1469,1499,1548,1581,1597,1646,1695,1744,1793
%N Numbers n such that string 4,1 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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