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 A268422 #3 Feb 04 2016 09:52:52 %S A268422 39,30295,25770278,17282463434,10053286458091,5273786308929110, %T A268422 2560363569664309507,1170610262171483735817,510268599126763954210436 %N A268422 Number of nX5 0..3 arrays with every repeated value in every row unequal to the previous repeated value, and in every column equal to the previous repeated value, and new values introduced in row-major sequential order. %C A268422 Column 5 of A268423. %e A268422 Some solutions for n=2 %e A268422 ..0..0..1..2..3....0..0..1..0..2....0..1..1..0..0....0..1..2..2..1 %e A268422 ..2..2..3..3..0....1..1..3..3..2....2..0..1..0..2....1..0..1..0..2 %Y A268422 Cf. A268423. %K A268422 nonn %O A268422 1,1 %A A268422 _R. H. Hardin_, Feb 04 2016