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 A068734 #9 Mar 09 2024 20:41:02 %S A068734 1,19,49051,23279942261,1954290045098180729 %N A068734 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -9 .. 9. %Y A068734 By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738. %K A068734 nonn,more %O A068734 1,2 %A A068734 _R. H. Hardin_, Feb 26 2002 %E A068734 a(5) from _Sean A. Irvine_, Mar 09 2024