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 A200825 #11 Jun 07 2014 07:27:50 %S A200825 21,196,1630,12776,96511,709506,5112134,36238976,253579683,1755615191, %T A200825 12048364111,82078204820,555669049602,3741805083510,25080702664546, %U A200825 167435417347772,1113826183859653,7386330575306323,48846398558444346 %N A200825 Number of n X 2 0..5 arrays with every row and column running average nondecreasing rightwards and downwards. %C A200825 Column 2 of A200831. %H A200825 R. H. Hardin, <a href="/A200825/b200825.txt">Table of n, a(n) for n = 1..116</a> %e A200825 Some solutions for n=3: %e A200825 ..2..2....0..1....3..3....1..2....0..4....1..3....1..1....1..1....1..2....0..0 %e A200825 ..3..4....2..3....3..4....2..5....0..4....3..4....2..3....1..4....1..3....1..4 %e A200825 ..3..4....5..5....3..4....2..5....3..5....2..4....3..3....2..3....1..4....1..3 %K A200825 nonn %O A200825 1,1 %A A200825 _R. H. Hardin_, Nov 23 2011