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 A022298 #4 Mar 30 2012 18:55:50 %S A022298 2,8,10,12,14,18,20,26,38,44,46,56,62,64,66,68,74,76,80,82,84,86,88, %T A022298 90,94,96,98,100,102,104,106,108,112,114,116,118,120,122,126,128,138, %U A022298 144,146,150,152,154,156,158,162,164,166,168,170,172,174,176,180,182,188,206 %N A022298 Exactly half of first n terms of A006928 are 1's (not known to be infinite). %K A022298 nonn %O A022298 0,1 %A A022298 _Clark Kimberling_