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 A046214 #9 Jun 22 2013 16:05:38 %S A046214 1,1,1,1,1,1,1,1,2,1,1,1,1,1,2,3,2,3,1,1,1,1,2,5,1,3,2,5,1,1,1,1,2,7, %T A046214 2,11,2,11,2,7,1,1,1,1,2,9,1,9,1,11,1,9,2,9,1,1,1,1,2,11,2,27,1,20,1, %U A046214 20,2,27,2,11,1,1,1,1,2,13,1,19,2,67,1,40,2,67,1,19,2,13,1,1,1,1,2,15,2 %N A046214 First denominator and then numerator of 1/2-Pascal triangle (by row). %e A046214 1/1; --> 1 1 %e A046214 1/1 1/1; --> 1 1 1 1 %e A046214 1/1 1/2 1/1; --> 1 1 2 1 1 1 %e A046214 1/1 3/2 3/2 1/1; --> ... %e A046214 1/1 5/2 3/1 5/2 1/1; %e A046214 1/1 7/2 11/2 11/2 7/2 1/1; %e A046214 1/1 9/2 9/1 11/1 9/1 9/2 1/1; %e A046214 1/1 11/2 27/2 20/1 20/1 27/2 11/2 1/1;... %Y A046214 Cf. A046213. %K A046214 tabf,nonn,frac %O A046214 1,9 %A A046214 _Mohammad K. Azarian_