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 A068759 #8 Jul 30 2017 22:20:49 %S A068759 1,10425,32119620625,30067792536888711885 %N A068759 Number of potential flows in n X n array with integer velocities in -12..12, i.e., number of n X n arrays with adjacent elements differing by no more than 12, counting arrays differing by a constant only once. %Y A068759 By size 3 X 3, ..., 6 X 6 A068744-A068747, by velocity limit 1..14 A068248-A068761, solenoidal flows A068722-A068738. %K A068759 nonn %O A068759 1,2 %A A068759 _R. H. Hardin_, Feb 27 2002