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Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 36.
0

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

%S 1,2,8,127,7011,1441324,1060428518,4031182499262,44780594451612813

%N Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 36.

%K nonn

%O 1,2

%A _R. H. Hardin_ Feb 09 2009