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A185427 Number of (n+2)X3 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.

%I A185427 #11 Jul 22 2025 09:46:02
%S A185427 6842284,284037544,8653394212,212298419684,4370405405266,
%T A185427 77657199293322,1216284173329482,17062128865116751,217083576402029968,
%U A185427 2530473438240068012,27249849558442300355,272981324157512302120
%N A185427 Number of (n+2)X3 0..7 arrays with each 3X3 subblock having rows and columns in lexicographically nondecreasing order.
%C A185427 Column 1 of A185435
%H A185427 R. H. Hardin, <a href="/A185427/b185427.txt">Table of n, a(n) for n = 1..200</a>
%H A185427 R. H. Hardin, <a href="/A185427/a185427.txt">Formula: polynomial of degree 119</a>
%F A185427 Polynomial of degree 119, see link
%e A185427 Some solutions for 4X3
%e A185427 ..0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0....0..0..0
%e A185427 ..0..0..6....0..0..4....0..0..4....0..0..4....0..0..2....0..0..2....0..0..4
%e A185427 ..0..4..4....2..7..3....2..6..1....2..4..4....0..4..2....0..7..2....2..5..6
%e A185427 ..1..4..6....4..5..3....5..4..2....4..7..7....5..5..7....7..1..3....5..4..0
%K A185427 nonn
%O A185427 1,1
%A A185427 _R. H. Hardin_ Jan 27 2011