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 A046568 #10 Jun 22 2013 16:05:40 %S A046568 1,1,1,1,1,1,1,5,5,1,1,9,5,9,1,1,13,19,19,13,1,1,17,8,19,8,17,1,1,21, %T A046568 49,35,35,49,21,1,1,25,35,119,35,119,35,25,1,1,29,95,189,259,259,189, %U A046568 95,29,1,1,33,31,71,112,259,112,71,31,33,1 %N A046568 Numerators of the 1/4-Pascal triangle (by row). %e A046568 1/1; --> 1 %e A046568 1/1 1/1; --> 1 1 %e A046568 1/1 1/4 1/1; --> 1 1 1 %e A046568 1/1 5/4 5/4 1/1; --> 1 5 5 5 1 %e A046568 1/1 9/4 5/2 9/4 1/1; --> .... %e A046568 1/1 13/4 19/4 19/4 13/4 1/1; %e A046568 1/1 17/4 8/1 19/2 8/1 17/4 1/1; %e A046568 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ... %Y A046568 Cf. A046563. %K A046568 tabl,nonn,frac %O A046568 1,8 %A A046568 _Mohammad K. Azarian_