%I A023771
%S A023771 0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,32,33,34,48,49,50,51,64,
%T A023771 65,66,67,68,80,81,82,83,84,85,96,97,98,99,100,101,102,112,113,114,
%U A023771 115,116,117,118,119,128,129,130,131,132,133,134,135,136,144,145
%N A023771 Nialpdromes: digits in base 16 are in descending order.
%H A023771 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Digit.html">Link to a section of The World of Mathematics.</a>
%H A023771 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               Nialpdrome.html">Link to a section of The World of Mathematics.</
               a>
%Y A023771 Sequence in context: A123719 A113221 A113219 this_sequence A132033 A133137 
               A160543
%Y A023771 Adjacent sequences: A023768 A023769 A023770 this_sequence A023772 A023773 
               A023774
%K A023771 nonn,base,easy
%O A023771 0,3
%A A023771 Olivier Gerard (olivier.gerard(AT)gmail.com)