|
%I #5 Nov 23 2014 18:01:21
%S 11,134,3476,204721,27076065,8093522514,5462124226322,
%T 8328699777016744,28688178263528167112,223246538149490827371276,
%U 3924702068331178468638788526,155874997244516815039571897178325
%N Number of (n+1)X(n+1) 0..1 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 Diagonal of A250468
%H R. H. Hardin, <a href="/A250460/b250460.txt">Table of n, a(n) for n = 1..20</a>
%e Some solutions for n=3
%e ..0..0..0..0....0..0..0..0....0..1..0..0....0..0..1..0....1..0..0..0
%e ..0..0..1..0....1..0..1..1....0..0..0..0....1..0..0..0....0..1..0..0
%e ..1..0..0..1....0..0..1..1....1..0..0..0....0..1..0..0....1..0..0..0
%e ..0..0..0..1....0..0..1..1....0..0..0..0....0..0..0..0....0..1..0..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Nov 23 2014
| 