A156466 - OEIS

A156466

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 17.

%I #4 Dec 18 2015 18:17:16

%S 2,10,84,1308,50500,5934606,3733057244,7484174351906,30512551214306088

%N Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 17.

%K nonn

%O 2,1

%A _R. H. Hardin_ Feb 09 2009