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 A321064 #4 Oct 27 2018 14:25:53 %S A321064 654424,19209584,769534688,39729927744,2548520444480,197890932247680, %T A321064 18237517555977472,1964023269922621952,244043425473888612352, %U A321064 34621419911316556017664,5557654485553447834816512,1001744885342172367869042688,201381195927539873971774119936 %N A321064 Number of ordered pairs (p,q) of permutations of [n] with equal up-down signatures and p(1)=q(1)=8. %Y A321064 Column k=8 of A262372. %K A321064 nonn %O A321064 8,1 %A A321064 _Alois P. Heinz_, Oct 26 2018