A219453 - OEIS

%I #5 Dec 18 2015 18:18:21

%S 4,4,114,3422,435960,124508284

%N Number of n X n arrays of the minimum value of corresponding elements and their horizontal, vertical, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 n X n array

%C Diagonal of A219460

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Nov 20 2012