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 A268017 #4 Jan 24 2016 09:56:07 %S A268017 222,49284,10941048,2012075697,343790697459,54331933243657, %T A268017 8093513353675817,1146370541408659891,155605439707891738543, %U A268017 20360223838428569306453,2580220150936262501252195 %N A268017 Number of nX5 0..2 arrays with every repeated value in every row and column greater than or equal to the previous repeated value. %C A268017 Column 5 of A268019. %H A268017 R. H. Hardin, <a href="/A268017/b268017.txt">Table of n, a(n) for n = 1..38</a> %e A268017 Some solutions for n=2 %e A268017 ..1..1..0..2..1....0..2..0..1..2....0..2..1..2..2....2..0..0..1..0 %e A268017 ..1..0..1..1..1....1..2..1..2..2....1..0..1..1..0....1..0..1..0..1 %Y A268017 Cf. A268019. %K A268017 nonn %O A268017 1,1 %A A268017 _R. H. Hardin_, Jan 24 2016