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 A224351 #7 Jul 23 2025 05:06:44 %S A224351 28,784,13052,151010,1421762,12340932,107694133,977742699,9202126546, %T A224351 88363107023,855357421083,8298639299407,80568348690372, %U A224351 782845364074773,7615402149223961,74171368176011107,723133239021563347 %N A224351 Number of nX6 0..2 arrays with diagonals and antidiagonals unimodal and rows nondecreasing. %C A224351 Column 6 of A224353 %H A224351 R. H. Hardin, <a href="/A224351/b224351.txt">Table of n, a(n) for n = 1..210</a> %H A224351 R. H. Hardin, <a href="/A224351/a224351.txt">Empirical recurrence of order 98</a> %F A224351 Empirical recurrence of order 98 (see link above) %e A224351 Some solutions for n=3 %e A224351 ..1..1..1..1..2..2....0..0..0..0..0..0....1..1..1..1..1..2....0..1..1..1..2..2 %e A224351 ..1..1..1..1..1..1....0..0..0..1..1..1....0..1..1..2..2..2....1..1..2..2..2..2 %e A224351 ..0..0..1..1..1..1....0..1..1..1..2..2....0..0..0..2..2..2....0..0..0..0..0..1 %K A224351 nonn %O A224351 1,1 %A A224351 _R. H. Hardin_ Apr 04 2013