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Number of (n+1)X(4+1) 0..2 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors
1

%I #4 Mar 11 2014 19:49:51

%S 378,3358,142884,4140964,127574544,3901908720,119751372066,

%T 3664449484670,112283408888432,3440153090631050,105372547404353366,

%U 3228095751643325026,98891535699178971328,3029394603374423030318,92803263177905303702730

%N Number of (n+1)X(4+1) 0..2 arrays with no element greater than all horizontal neighbors or equal to all vertical neighbors

%C Column 4 of A239178

%H R. H. Hardin, <a href="/A239174/b239174.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=3

%e ..1..1..0..2..2....0..1..2..2..1....0..0..1..1..1....0..1..1..0..0

%e ..0..2..2..0..0....2..2..1..1..0....2..2..2..2..0....2..2..0..2..2

%e ..1..1..2..2..1....2..2..1..0..0....1..1..1..1..1....2..2..2..2..2

%e ..0..0..0..0..0....0..1..2..2..2....2..2..2..2..2....0..0..1..1..0

%K nonn

%O 1,1

%A _R. H. Hardin_, Mar 11 2014