%I #4 Nov 28 2014 19:08:59

%S 40357,428095,4106983,36809498,300230097,2251710502,15686582837,

%T 102608620935,635877024847,3761814167894,21377061188188,

%U 117290921530356,624016885183519,3230699482590753,16325650347436124,80728866160658829

%N Number of (7+1)X(n+1) 0..2 arrays with nondecreasing x(i,j)+x(i,j-1) in the i direction and nondecreasing absolute value of x(i,j)-x(i-1,j) in the j direction

%C Row 7 of A250942

%H R. H. Hardin, <a href="/A250949/b250949.txt">Table of n, a(n) for n = 1..158</a>

%e Some solutions for n=1

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

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

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 28 2014