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 A084691 #12 Jan 16 2013 01:04:50 %S A084691 24048,55201,86537,117915,149309,180711,212116,243525,274935,306346, %T A084691 337758,369171,400584,431998,463412,494826,526241,557655,589070,620485 %N A084691 10000 times the n-th zero of the BesselJ function of zero order, rounded. %e A084691 24048 represents A115368. 55201 represents 5.52007811... %t A084691 Round[10000 BesselJZero[0, Range[20]]] %K A084691 nonn %O A084691 1,1 %A A084691 _Zak Seidov_, Jul 01 2003