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 A268106 #3 Jan 26 2016 12:20:42 %S A268106 8,729,262144,232608375,427979206656,1422917069386176, %T A268106 7780188517552009728,65282814314072669856303, %U A268106 797471492064362985335311000,13607369559752757079941998010377 %N A268106 Number of 3Xn 0..n arrays with every repeated value in every row and column greater than or equal to the previous repeated value. %C A268106 Row 3 of A268103. %e A268106 Some solutions for n=5 %e A268106 ..0..0..0..0..0....0..0..0..0..0....0..0..0..0..0....0..0..0..0..0 %e A268106 ..0..0..4..1..5....0..0..5..0..5....0..0..5..1..3....0..0..3..2..1 %e A268106 ..0..3..2..5..4....0..3..4..0..0....3..3..5..1..2....0..3..4..3..0 %Y A268106 Cf. A268103. %K A268106 nonn %O A268106 1,1 %A A268106 _R. H. Hardin_, Jan 26 2016