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%I #5 Mar 31 2012 12:36:38
%S 192,16092,217946,1453304,6428538,21939870,62361448,154585536,
%T 345422978,710643132,1366075526,2483991350,4309599382,7180688000,
%U 11557570298,18048274072,27438624488,40742003838,59232871060,84489363024
%N Number of -n..n arrays x(0..7) of 8 elements with zero sum and nonzero second and third differences
%C Row 5 of A200204
%H R. H. Hardin, <a href="/A200209/b200209.txt">Table of n, a(n) for n = 1..26</a>
%e Some solutions for n=3
%e .-2...-3...-2...-3...-1...-1...-2...-3...-2...-3...-3...-2...-3...-3...-2...-2
%e ..0....0....1....1...-1....2....3....2...-3...-2...-1....1....2...-3....1...-2
%e ..1...-1....3....0....3...-3....1....1....3....2...-1...-1...-3....3....3....0
%e ..3....3...-1...-3...-2....1...-3....1...-2...-2....3...-2....1....2....1....1
%e .-2...-2...-3....0....2....3....1...-1....3....3...-3....3....3...-1....2...-2
%e .-1....2....2....1...-3...-1...-1....1....2....2....1....0...-1....2...-3....2
%e .-2....2...-3....3....1...-1...-1...-2...-2....3....3...-2...-1....0....0....0
%e ..3...-1....3....1....1....0....2....1....1...-3....1....3....2....0...-2....3
%K nonn
%O 1,1
%A _R. H. Hardin_ Nov 14 2011
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