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%I #4 Nov 26 2014 22:15:10
%S 480846,11354082,242456834,3888150856,50308117796,550734848033,
%T 5300798582250,46142774467199,371449841970920,2807541564936234,
%U 20180942387047925,139143362446503271,927456697203185953
%N Number of (7+1)X(n+1) 0..3 arrays with nondecreasing 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 Row 7 of A250707
%H R. H. Hardin, <a href="/A250714/b250714.txt">Table of n, a(n) for n = 1..178</a>
%e Some solutions for n=1
%e ..1..0....1..0....1..0....0..0....1..0....0..0....1..0....0..0....1..0....0..0
%e ..0..1....0..2....0..1....0..0....0..1....0..1....0..1....0..2....0..1....0..0
%e ..0..2....0..2....0..1....1..1....0..2....0..2....0..1....0..3....0..1....1..2
%e ..0..2....1..2....1..1....1..2....1..1....0..2....1..1....1..2....1..0....2..2
%e ..3..2....2..1....1..1....2..2....1..1....2..0....1..2....0..3....0..1....2..3
%e ..2..3....1..2....2..2....1..3....2..1....0..3....2..2....0..3....2..1....3..2
%e ..2..3....1..3....2..2....1..3....1..3....1..2....2..2....1..2....1..3....2..3
%e ..2..3....3..1....1..3....1..3....1..3....2..3....2..3....1..2....3..3....3..2
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 26 2014
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