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 A046600 #9 Jul 02 2025 16:01:57 %S A046600 5,5,9,5,2,9,13,19,19,13,17,8,19,2,8,17,21,49,35,2,35,2,49,21,25,35,2, %T A046600 119,35,119,35,2,25,29,95,189,259,259,189,95,29,33,31,71,112,259,2, %U A046600 112,71,31,33,37,157,102,183,483,2,483,2,183,102,157,37,41,97,2,565,285 %N A046600 First numerator and then denominator of each element of the 1/4-Pascal triangle (by row), excluding 1's and 4's. %e A046600 1/1; 1/1 1/1; 1/1 1/4 1/1; 1/1 5/4 5/4 1/1; 1/1 9/4 5/2 9/4 1/1; 1/1 13/4 19/4 19/4 13/4 1/1; 1/1 17/4 8/1 19/2 8/1 17/4 1/1; 1/1 21/4 49/4 35/2 35/2 49/4 21/4 1/1; ... %Y A046600 Cf. A046563. %K A046600 tabf,nonn %O A046600 1,1 %A A046600 _Mohammad K. Azarian_ %E A046600 More terms from _James Sellers_, Dec 14 1999