This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A023767 #14 Jan 06 2014 17:26:16 %S A023767 0,1,2,3,4,5,6,7,8,9,10,11,12,13,24,25,26,36,37,38,39,48,49,50,51,52, %T A023767 60,61,62,63,64,65,72,73,74,75,76,77,78,84,85,86,87,88,89,90,91,96,97, %U A023767 98,99,100,101,102,103,104,108,109,110,111,112,113,114,115,116 %N A023767 Nialpdromes: digits in base 12 are in nonincreasing order. %H A023767 Vincenzo Librandi, <a href="/A023767/b023767.txt">Table of n, a(n) for n = 1..1000</a> %t A023767 Select[Range[0, 700], Max[Differences[IntegerDigits[#, 12]]]<=0&] (* _Vincenzo Librandi_, Dec 26 2012 *) %t A023767 Select[Range[0,116],GreaterEqual@@IntegerDigits[#,12]&] (* _Ray Chandler_, Jan 06 2014 *) %K A023767 nonn,base,easy %O A023767 1,3 %A A023767 _Olivier Gérard_