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 A266160 #7 Apr 11 2023 13:29:36 %S A266160 48,1528,85976,7699384,895747208,121920870264,17786755869336, %T A266160 2703839577994464,421768649710297424 %N A266160 Number of 5 X n arrays containing n copies of 0..5-1 with no element plus any horizontal, vertical or antidiagonal neighbor equal to 5-1. %C A266160 Row 5 of A266158. %e A266160 Some solutions for n=3 %e A266160 ..0..0..1....4..1..1....1..0..3....1..0..2....2..0..1....3..4..4....3..3..0 %e A266160 ..1..1..4....2..1..4....2..0..0....1..0..3....0..2..0....2..4..1....2..3..0 %e A266160 ..2..4..2....0..2..4....3..2..1....0..3..4....1..1..2....1..2..1....4..2..0 %e A266160 ..4..3..3....0..3..2....3..4..4....2..4..2....4..4..3....0..0..0....4..1..2 %e A266160 ..2..0..3....3..0..3....2..1..4....3..4..1....4..3..3....2..3..3....4..1..1 %Y A266160 Cf. A266158. %K A266160 nonn %O A266160 1,1 %A A266160 _R. H. Hardin_, Dec 22 2015