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 A101889 #1 Feb 20 2005 03:00:00 %S A101889 5,10,15,20,21,26,31,36,41,42,47,52,57,62,63,68,73,78,83,84,85,89,94, %T A101889 99,104,106,109,114,119,121,124,126,128,133,138,143,147,148,149,153, %U A101889 158,163,165,168,173,178,183,186,188,189,191,196,201,203,206,210,211,216 %N A101889 Natural numbers excluding A101888. %Y A101889 Cf. A101888, A101885, A101887. %K A101889 nonn %O A101889 1,1 %A A101889 Douglas Stones (dssto1(AT)student.monash.edu.au), Dec 20 2004