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%I #4 Dec 18 2015 18:17:18
%S 7182,81970,467006,1871442,9915518,40057258,143026182,684920266,
%T 2780241662,10567815570
%N Number of n X n arrays of squares of integers with every 3X3 subblock summing to 21
%K nonn
%O 3,1
%A _R. H. Hardin_ Apr 06 2009
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