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 A049696 #9 Sep 27 2024 23:15:11 %S A049696 0,2,4,8,12,20,24,36,44,56,64,84,92,116,128,144,160,192,204,240,256, %T A049696 280,300,344,360,400,424,460,484,540,556,616,648,688,720,768,792,864, %U A049696 900,948,980,1060,1084,1168 %N A049696 a(n)=T(n,n), array T as in A049695. %F A049696 a(n) = 2 * A002088(n). %Y A049696 Cf. A002088, A206350. %K A049696 nonn %O A049696 0,2 %A A049696 _Clark Kimberling_