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%I A032992 #7 Dec 15 2014 12:02:49
%S A032992 1,2,3,4,5,6,7,8,9,15,16,17,18,19,26,27,28,29,37,38,39,40,48,49,50,51,
%T A032992 59,60,61,62,70,71,72,73,80,81,82,83,84,90,91,92,93,94,95,150,151,159,
%U A032992 160,161,162,170,171,172,173,180,181,182,183
%N A032992 If d,e are consecutive digits of n in base 10, then |d-e|>=4.
%t A032992 Select[Range[200],Min[Abs[Differences[IntegerDigits[#]]]]>3&] (* _Harvey P. Dale_, Dec 15 2014 *)
%K A032992 nonn,base
%O A032992 1,2
%A A032992 _Clark Kimberling_

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