%I #4 Dec 18 2015 18:17:17

%S 2,28,76,6024,39000,4562152,61580624,13526490400,338077231956,

%T 183471645987760

%N Number of n X n arrays of squares of integers, symmetric about both diagonal and antidiagonal, with all rows summing to 19.

%K nonn

%O 3,1

%A _R. H. Hardin_ Feb 09 2009