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%I #8 Dec 18 2015 18:17:19
%S 68,3974,489344,11519386,120219092,783628988,3750168768,14410898388,
%T 46984276484,134788006082,348991646336,830716777310,1843200453460,
%U 3853005291320,7651988628800,14534976588312,26551869394500
%N Number of n X n arrays of squares of integers with every (n-2)X(n-2) subblock summing to 5
%H R. H. Hardin, <a href="/A159361/b159361.txt">Table of n, a(n) for n=4..25</a>
%F Empirical G.f.: -80*x^3 - 2*x^3*(40 - 406*x + 3813*x^2 + 218085*x^3 + 3185176*x^4 + 9874768*x^5 + 7680205*x^6 + 626909*x^7 - 183350*x^8 + 4896*x^9 + 288*x^10)/(-1+x)^11. - _Vaclav Kotesovec_, Nov 30 2012
%K nonn
%O 4,1
%A _R. H. Hardin_ Apr 11 2009
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