login
Number of n X n arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X n array
0

%I #5 Dec 18 2015 18:18:23

%S 3,11,77,1174,34959,3057777,822242009,671848868714

%N Number of n X n arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 n X n array

%C Diagonal of A220153

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Dec 06 2012