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%I #12 Feb 13 2021 01:13:04
%S 1,2,3,4,5,6,11,12,13,19,20,21,27,28,29,35,36,37,42,43,44,45,77,78,84,
%T 85,86,91,92,93,94,133,134,135,140,141,142,143,150,151,152,153,189,
%U 190,191,192,199,200,201,202,207,208,209,248,249
%N Numbers with the property that all pairs of consecutive base-7 digits differ by more than 2.
%H Harvey P. Dale, <a href="/A032984/b032984.txt">Table of n, a(n) for n = 1..1000</a>
%t Select[Range[300],Min[Abs[Differences[IntegerDigits[#,7]]]]>2&] (* _Harvey P. Dale_, Mar 17 2016 *)
%Y Cf. A007093.
%K nonn,base
%O 1,2
%A _Clark Kimberling_