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 A068738 #9 Mar 10 2024 20:29:37 %S A068738 1,27,199655,547436323149,535691029084640060219 %N A068738 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -13 .. 13. %Y A068738 By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738. %K A068738 nonn,more %O A068738 1,2 %A A068738 _R. H. Hardin_, Feb 26 2002 %E A068738 a(5) from _Sean A. Irvine_, Mar 10 2024