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%I #5 Mar 30 2012 18:56:46
%S 54,154,254,354,454,549,554,654,754,854,954,1054,1154,1254,1354,1454,
%T 1549,1554,1654,1754,1854,1954,2054,2154,2254,2354,2454,2549,2554,
%U 2654,2754,2854,2954,3054,3154,3254,3354,3454,3549
%N Numbers n such that string 5,4 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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