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A224194 Number of 7Xn 0..2 arrays with rows unimodal and columns nondecreasing.

%I A224194 #8 Jul 23 2025 05:02:26
%S A224194 36,1296,28176,424326,4844576,44435746,340780382,2249643632,
%T A224194 13068669308,67970305364,320903298144,1390873688506,5586138847981,
%U A224194 20953028554541,73888808853350,246365532350644,780525967950004,2359724042194860
%N A224194 Number of 7Xn 0..2 arrays with rows unimodal and columns nondecreasing.
%C A224194 Row 7 of A224190
%H A224194 R. H. Hardin, <a href="/A224194/b224194.txt">Table of n, a(n) for n = 1..210</a>
%H A224194 R. H. Hardin, <a href="/A224194/a224194.txt">Empirical polynomial of degree 28</a>
%F A224194 Empirical polynomial of degree 28 (see link above)
%e A224194 Some solutions for n=3
%e A224194 ..0..1..0....0..0..0....0..0..0....0..1..0....0..0..0....2..0..0....0..0..0
%e A224194 ..0..1..0....0..0..0....0..1..0....1..2..0....0..0..0....2..0..0....0..1..1
%e A224194 ..0..1..0....0..1..1....0..1..1....1..2..0....0..2..1....2..0..0....0..1..1
%e A224194 ..0..1..1....1..1..1....0..1..1....1..2..2....2..2..1....2..1..0....0..2..1
%e A224194 ..0..1..1....1..2..2....0..1..1....1..2..2....2..2..1....2..2..1....0..2..1
%e A224194 ..1..2..1....2..2..2....0..2..2....1..2..2....2..2..1....2..2..1....0..2..2
%e A224194 ..1..2..1....2..2..2....2..2..2....2..2..2....2..2..1....2..2..2....0..2..2
%K A224194 nonn
%O A224194 1,1
%A A224194 _R. H. Hardin_ Apr 01 2013