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 A265375 #5 Aug 12 2016 06:53:58 %S A265375 1,99,4954,363850,25964546,2006263350,159927435847,13175135914848, %T A265375 1111064939631727,95607791613443343,8362857163936394397 %N A265375 Number of 5Xn arrays containing n copies of 0..5-1 with no equal horizontal, vertical or antidiagonal neighbors and new values introduced sequentially from 0. %C A265375 Row 5 of A265373. %e A265375 Some solutions for n=3 %e A265375 ..0..1..2....0..1..0....0..1..2....0..1..2....0..1..0....0..1..2....0..1..2 %e A265375 ..3..0..3....2..3..4....3..4..3....3..4..3....2..3..4....3..0..4....2..3..4 %e A265375 ..2..4..1....1..2..3....1..0..4....1..2..4....4..2..3....1..2..1....1..2..0 %e A265375 ..0..3..4....4..0..2....2..3..2....0..1..0....1..0..2....3..4..0....3..1..4 %e A265375 ..4..2..1....1..3..4....1..0..4....2..4..3....3..1..4....2..3..4....4..0..3 %Y A265375 Cf. A265373. %K A265375 nonn %O A265375 1,2 %A A265375 _R. H. Hardin_, Dec 07 2015