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 A061895 #3 May 07 2013 11:42:00 %S A061895 2,0,2,2,1,1,2,2,1,1,2,2,3,4,1,1,1,1,2,2,2,3,3,4,4,5,6,1,1,1,1,1,1,2, %T A061895 2,2,2,2,3,3,3,3,4,4,4,4,5,5,5,6,6,6,7,7,8,8,9,9,10,11,12,13,1,1,1,1, %U A061895 1,1,1,1,1,1,1,1,1,2,2,2,2,2,2,2,2,2,2,2,2,3,3,3,3,3,3,3,3,3,3 %N A061895 Table of Lionel-Levine-sequence generated by (2,0). %e A061895 a(13) = 4: (2,0),(2,2),(1,1,2,2),(1,1,2,2,3,4) %Y A061895 A061894(5) = 13 = A061895(61), see also A012257. %K A061895 nonn,easy,tabf %O A061895 0,1 %A A061895 _Frank Ellermann_, May 13 2001