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 A224203 #8 Jul 23 2025 05:03:04 %S A224203 1163,180821,11446096,475218035,17178450136,618703866073, %T A224203 22835261226043,856178295327574,32299825618280351,1220504574023229563, %U A224203 46124705848425800316,1742806875797016046956,65840694352751999751002 %N A224203 Number of nX7 0..3 arrays with rows unimodal and antidiagonals nondecreasing. %C A224203 Column 7 of A224204 %H A224203 R. H. Hardin, <a href="/A224203/b224203.txt">Table of n, a(n) for n = 1..210</a> %H A224203 R. H. Hardin, <a href="/A224203/a224203.txt">Empirical recurrence of order 41</a> %F A224203 Empirical recurrence of order 41 (see link above) %e A224203 Some solutions for n=3 %e A224203 ..0..0..0..0..0..1..1....0..0..0..0..0..1..0....0..0..0..0..2..0..0 %e A224203 ..0..0..0..1..3..2..0....0..0..0..1..1..1..1....0..0..0..2..3..2..0 %e A224203 ..0..0..1..3..3..3..1....0..0..2..3..3..3..3....0..2..2..3..3..2..2 %K A224203 nonn %O A224203 1,1 %A A224203 _R. H. Hardin_ Apr 01 2013