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Numbers n such that string 7,3 occurs in the base 8 representation of n but not of n+1.
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%I #5 Mar 30 2012 18:56:45

%S 59,123,187,251,315,379,443,479,507,571,635,699,763,827,891,955,991,

%T 1019,1083,1147,1211,1275,1339,1403,1467,1503,1531,1595,1659,1723,

%U 1787,1851,1915,1979,2015,2043,2107,2171,2235,2299,2363

%N Numbers n such that string 7,3 occurs in the base 8 representation of n but not of n+1.

%K nonn,base

%O 1,1

%A _Clark Kimberling_