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 A068730 #10 Mar 11 2024 15:43:37 %S A068730 1,11,5551,173429597,322309309862183,35922392489639958547367 %N A068730 Number of solenoidal flows (flow in = flow out) in an n X n square array with integer velocities in -5 .. 5. %Y A068730 By size 3 X 3, ..., 6 X 6 A068722-A068725, by velocity limit 1..13 A068726-A068738. %K A068730 nonn,more %O A068730 1,2 %A A068730 _R. H. Hardin_, Feb 26 2002 %E A068730 a(6) from _Sean A. Irvine_, Mar 11 2024