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%I #7 Mar 25 2022 18:54:34
%S 8,1454,301432,50432052,6697376240,732383803600,68110029402413,
%T 5516712973977104,396137884984421823,25563298281912009949,
%U 1498543207391775400633,80501743778622446236710
%N Number of n X 4 zero-sum -2..2 arrays with rows and columns lexicographically nondecreasing.
%C Column 4 of A201496.
%H R. H. Hardin, <a href="/A201492/b201492.txt">Table of n, a(n) for n = 1..27</a>
%e Some solutions for n=2
%e .-2..0..0..2...-2.-1..2..2...-2.-1..0..2...-1.-1..1..1...-2.-1..0..1
%e .-1..0..0..1...-2..1.-2..2....1..1..1.-2....1..1.-2..0....0..1.-1..2
%Y Cf. A201496.
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 02 2011
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