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%I #8 Aug 23 2021 21:45:15
%S 14,41,114,140,214,241,314,341,410,441,514,541,614,641,714,741,814,
%T 841,914,941,1014,1041,1114,1140,1214,1241,1314,1341,1400,1514,1541,
%U 1614,1641,1714,1741,1814,1841,1914,1941,2014,2041
%N Numbers k such that 1 and 4 occur juxtaposed in the base-10 representation of k but not of k-1.
%K nonn,base
%O 1,1
%A _Clark Kimberling_
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