%I #5 Dec 18 2015 18:18:15

%S 4,36,4634,1608968,3856183182,40522780697742,2345237392530015812,

%T 681081741849413830473468,1012037226170162671485394009190

%N Number of n X n arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random 0..3 n X n array

%C Diagonal of A218522

%e Some solutions for n=3

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_ Oct 31 2012