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%I #11 Oct 03 2023 22:23:49
%S 1,2,3,4,5,6,8,13,15,20,22,27,29,34,37,49,51,78,80,92,94,121,123,135,
%T 137,164,166,178,207,209,222,224,294,296,308,310,469,481,483,553,555,
%U 567,569,726,728,740,742,812,814,826,985,987
%N Numbers with the property that all pairs of consecutive base-6 digits differ by 1.
%t Join[Range[5],Select[Range[2000],Union[Abs[Differences[IntegerDigits[#,6]]]]=={1}&]] (* _Harvey P. Dale_, Dec 28 2011 *)
%K nonn,base
%O 1,2
%A _Clark Kimberling_