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%I #12 Jun 10 2019 23:09:15
%S 0,1,2,3,4,5,6,7,8,9,10,11,12,13,26,27,39,40,41,52,53,54,55,65,66,67,
%T 68,69,78,79,80,81,82,83,91,92,93,94,95,96,97,104,105,106,107,108,109,
%U 110,111,117,118,119,120,121,122,123,124,125,130,131,132,133
%N Katadromes: digits in base 13 are in strict descending order.
%H Sean A. Irvine, <a href="/A023794/b023794.txt">Table of n, a(n) for n = 1..8191</a>
%t Select[Range[0,200],Max[Differences[IntegerDigits[#,13]]]<0&] (* _Harvey P. Dale_, Apr 22 2013 *)
%K nonn,base,fini,full,easy
%O 1,3
%A _Olivier Gérard_