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 A250515 Number of (n+1)X(4+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction 1

%I #4 Nov 24 2014 18:32:30

%S 39187,2817780,166583429,9680713976,529549691761,28601087487209,

%T 1507593926459193,79158901718859170,4118346250550015247,

%U 214152428120123667732,11098091889851055507353,575298993463899645319726

%N Number of (n+1)X(4+1) 0..3 arrays with nondecreasing min(x(i,j),x(i,j-1)) in the i direction and nondecreasing min(x(i,j),x(i-1,j)) in the j direction

%C Column 4 of A250519

%H R. H. Hardin, <a href="/A250515/b250515.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

%e ..0..0..0..0..0....0..0..0..0..1....1..0..2..0..3....0..3..0..2..1

%e ..0..1..2..0..3....1..0..1..1..1....0..3..0..1..0....1..0..1..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 24 2014

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