A156453 - OEIS

A156453

Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 11.

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

%S 4,42,704,37760,5291400,1392368488,570443632816,356237015034240,

%T 353949803694601635

%N Number of n X n arrays of squares of integers, symmetric about main diagonal, with all rows summing to 11.

%K nonn

%O 3,1

%A _R. H. Hardin_ Feb 09 2009