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 A101887 #1 Feb 20 2005 03:00:00 %S A101887 4,8,12,13,17,21,23,25,26,30,33,34,38,40,44,45,46,49,52,54,56,57,59, %T A101887 62,64,67,69,73,74,75,76,79,81,83,84,88,92,93,97,101,105,106,108,112, %U A101887 113,115,119,120,121,122,126,130,132,134,135,136,138,142,145,146,150,153 %N A101887 Natural numbers excluding A101886. %Y A101887 Cf. A101886, A101885, A101889. %K A101887 nonn %O A101887 1,1 %A A101887 Douglas Stones (dssto1(AT)student.monash.edu.au), Dec 20 2004