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A159363 Number of n X n arrays of squares of integers summing to 6. 1

%I

%S 12,336,9688,184000,1969212,14039088,75099360,324796176,1192537500,

%T 3844187424,11144826264,29583574384,72891000364,168494340000,

%U 368541092736,768025638240,1533632745708,2948331631152,5478589599000

%N Number of n X n arrays of squares of integers summing to 6.

%H R. H. Hardin, <a href="/A159363/b159363.txt">Table of n, a(n) for n=2..100</a>

%F Empirical G.f.: -4*x^2*(1+x)*(3 + 42*x + 1522*x^2 + 18686*x^3 + 42654*x^4 + 18686*x^5 + 1522*x^6 + 42*x^7 + 3*x^8)/(-1+x)^13. - _Vaclav Kotesovec_, Nov 30 2012

%K nonn

%O 2,1

%A _R. H. Hardin_, Apr 11 2009

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Last modified February 27 18:28 EST 2020. Contains 332307 sequences. (Running on oeis4.)