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%I #5 Mar 30 2012 18:56:25
%S 1,2,3,4,5,6,7,8,9,10,11,18,19,20,21,22,23,31,32,33,34,35,44,45,46,47,
%T 57,58,59,60,70,71,72,73,83,84,85,86,96,97,98,99,108,109,110,111,112,
%U 120,121,122,123,124,125,132,133,134,135,136
%N If d,e are consecutive digits of n in base 12, then |d-e|>=5.
%K nonn,base
%O 1,2
%A _Clark Kimberling_