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A189948 1/4 the number of arrangements of n+1 nonzero numbers x(i) in -6..6 with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero 1

%I

%S 14,61,542,6733,77459,839968,9133420,101599137,1148390301,13075280021,

%T 149477475730,1715275336520,19756078906837,228289957465939,

%U 2645189908828920,30720393567321132,357493766148806039

%N 1/4 the number of arrangements of n+1 nonzero numbers x(i) in -6..6 with the sum of sign(x(i))*(|x(i)| mod x(i+1)) equal to zero

%C Column 6 of A189951

%H R. H. Hardin, <a href="/A189948/b189948.txt">Table of n, a(n) for n = 1..133</a>

%e Some solutions with n=3

%e .-3...-6...-1...-4...-2...-2...-4....2...-1....1....6...-5....1....2....6...-6

%e .-2....5....6...-2....3....3....4....2...-5....5...-1...-1...-4...-2...-1....6

%e ..1...-3....1...-1...-5...-5....4...-5....1...-2....3...-1...-3....2...-1...-3

%e .-3....2...-4...-1...-2....2...-2...-3...-2...-4...-2...-1...-1....2...-1...-1

%K nonn

%O 1,1

%A _R. H. Hardin_ May 02 2011

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Last modified October 27 19:49 EDT 2021. Contains 348288 sequences. (Running on oeis4.)