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 A263160 #10 Dec 02 2016 17:06:50
%S A263160 1,1,13,5419,328504401,7622403922836151,125076804896889941384267749,
%T A263160 2283244029676857615289372083169016508547,
%U A263160 66656513992169790340795231563272399566454175106315563265,4218602489837041203989313097616905233039652652837921715487541815010092122991
%N A263160 Number of lattice paths starting at {n}^n and ending when n or any component equals 0 and using steps that decrement one or more components by one.
%H A263160 Alois P. Heinz and Vaclav Kotesovec, <a href="/A263160/b263160.txt">Table of n, a(n) for n = 0..12</a> (terms 0..10 from Alois P. Heinz)
%F A263160 a(n) = A263159(n,n).
%Y A263160 Main diagonal of A263159.
%K A263160 nonn,hard
%O A263160 0,3
%A A263160 _Alois P. Heinz_, Oct 11 2015
%E A263160 a(11)-a(12) in b-file from _Vaclav Kotesovec_, Dec 02 2016