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 A224063 #5 Jul 23 2025 04:59:18 %S A224063 1163,180821,6643979,114643788,1274747540,11060805360,83942450048, %T A224063 591725806925,3973992584299,25579886531225,157381574935619, %U A224063 920939113739591 %N A224063 Number of nX7 0..3 arrays with rows, columns and antidiagonals unimodal and diagonals nondecreasing. %C A224063 Column 7 of A224064 %e A224063 Some solutions for n=3 %e A224063 ..0..0..0..0..0..2..0....0..0..0..0..0..1..0....0..0..0..0..0..0..1 %e A224063 ..0..0..0..0..0..3..2....0..0..0..2..2..2..3....0..0..0..1..1..2..1 %e A224063 ..0..0..0..0..1..2..3....0..0..0..1..2..3..2....0..0..0..1..2..3..3 %K A224063 nonn %O A224063 1,1 %A A224063 _R. H. Hardin_ Mar 30 2013