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 A224208 #8 Apr 11 2022 18:04:45 %S A224208 4096,1600000,72105068,1229044416,12652618110,96914926654, %T A224208 618703866073,3548209715979,19271137728483,102347986047920, %U A224208 537384393939360,2776104877172612,13950578706978266,67469676772365413,311817626166418846 %N A224208 Number of 6 X n 0..3 arrays with rows unimodal and antidiagonals nondecreasing. %C A224208 Row 6 of A224204. %H A224208 R. H. Hardin, <a href="/A224208/b224208.txt">Table of n, a(n) for n = 1..210</a> %H A224208 R. H. Hardin, <a href="/A224208/a224208.txt">Empirical polynomial of degree 36</a> %F A224208 Empirical polynomial of degree 36 (see link above). %e A224208 Some solutions for n=3 %e A224208 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 %e A224208 ..0..0..2....0..0..2....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0 %e A224208 ..0..2..2....0..2..0....2..2..2....2..2..1....0..0..1....2..2..1....2..2..1 %e A224208 ..2..3..2....2..3..0....2..3..0....3..3..1....0..2..1....2..2..2....2..2..1 %e A224208 ..3..2..0....3..2..2....3..0..0....3..1..1....2..2..2....3..3..3....2..2..2 %e A224208 ..3..2..0....2..3..1....3..0..0....1..3..1....3..2..1....3..3..1....2..3..2 %Y A224208 Cf. A224204. %K A224208 nonn %O A224208 1,1 %A A224208 _R. H. Hardin_, Apr 01 2013