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%I #5 Mar 31 2012 12:36:15
%S 140,28440,977092,11544464,80270588,379997096,1456853916,4628970120,
%T 12936888748,32366459464,75421739904,160238955844,324918108616,
%U 626280932600,1150395462428,2026063806864,3474982794008,5750861887452
%N Number of arrangements of 9 nonzero numbers x(i) in -n..n with the sum of trunc(x(i)/x(i+1)) equal to zero
%C Row 8 of A189545
%H R. H. Hardin, <a href="/A189552/b189552.txt">Table of n, a(n) for n = 1..61</a>
%e Some solutions for n=5
%e .-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5
%e .-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5...-5
%e .-4...-5...-5...-5...-5...-5...-4...-5...-5...-4...-4...-5...-4...-4...-5...-4
%e .-5...-4....2....2...-5....5...-5....1....4...-5....1....4...-4...-5...-4...-4
%e .-5....4....5...-5....1...-3...-3...-2....4....3...-4...-1....4....3....3....5
%e .-5...-1....2....3....3...-4....2....2....2...-3....3...-4....5....3....4...-5
%e ..4...-3...-1....3....5...-3....2...-3...-2....2...-2...-4....5...-2...-3....5
%e ..4....4...-3....3....2....4...-3...-3....1....4...-4...-3....4....2...-5...-3
%e .-1....2....5...-2....5...-4....1...-1...-1....3...-1...-2...-1....5....4...-5
%K nonn
%O 1,1
%A _R. H. Hardin_ Apr 23 2011
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