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 A115045 #5 Mar 31 2012 10:26:05 %S A115045 0,10,20,50,101,111,121,151,202,212,222,252,505,515,525,555,609,619, %T A115045 629,659,808,818,858,906,916,926,956,1001,1111,1221,1551,2002,2112, %U A115045 2222 %N A115045 Strobogrammatic time display in hours and minutes on a 24-hour four spaced digital clock. Leading zeros omitted. %C A115045 050 and 2112 for instance stand for 0:50 and 21:12, i.e. 0h50mn and 21h12mn respectively. %Y A115045 Cf. A018846. %K A115045 fini,full,nonn,base %O A115045 1,2 %A A115045 _Lekraj Beedassy_, Feb 28 2006