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Number of n X n arrays of squares of integers summing to 39
1

%I #5 Dec 18 2015 18:17:21

%S 28,45816,110039968,420701133400,1976279076814248,9589558233565686488,

%T 42123451431622613172480,150462333903898917528337008,

%U 399936631311295917958528978800,735289737919552579519769035178156

%N Number of n X n arrays of squares of integers summing to 39

%H R. H. Hardin, <a href="/A159443/b159443.txt">Table of n, a(n) for n=2..100</a>

%K nonn

%O 2,1

%A _R. H. Hardin_ Apr 11 2009