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A159383 Number of n X n arrays of squares of integers summing to 11 1

%I

%S 12,1584,152688,13648200,846679356,32762864904,779081474880,

%T 12381739674840,143119261158300,1283949949655736,9379210663695600,

%U 57819891720389760,309087991429311276,1463326913027026800

%N Number of n X n arrays of squares of integers summing to 11

%H R. H. Hardin, <a href="/A159383/b159383.txt">Table of n, a(n) for n=2..100</a>

%F Empirical G.f.: -12*x^2*(1+x)*(1 + 108*x + 9833*x^2 + 866490*x^3 + 46525328*x^4 + 1327261872*x^5 + 16745609840*x^6 + 97277340534*x^7 + 275802359702*x^8 + 390874554984*x^9 + 275802359702*x^10 + 97277340534*x^11 + 16745609840*x^12 + 1327261872*x^13 + 46525328*x^14 + 866490*x^15 + 9833*x^16 + 108*x^17 + x^18)/(-1+x)^23. - _Vaclav Kotesovec_, Nov 30 2012

%K nonn

%O 2,1

%A _R. H. Hardin_ Apr 11 2009

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Last modified September 19 13:08 EDT 2020. Contains 337178 sequences. (Running on oeis4.)