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%I #6 Mar 13 2017 00:15:57
%S 1,3,11,58,351,2354,16307,116183,843779,6227718,46571177,352155364,
%T 2688196663,20688930990,160363122189
%N Number of n-bead necklaces labeled with numbers -5..5 not allowing reversal, with sum zero and first differences in -5..5.
%C Column 5 of A208993.
%e Some solutions for n=6:
%e .-2...-4...-2...-4...-2...-4...-3...-4...-3...-3...-4...-2...-2...-3...-2...-4
%e ..0...-3...-1....1...-2...-2....1...-2....2....2....1...-2...-2....2....0...-4
%e ..0....1...-1....3....2...-1....2....3....3....0...-1...-1...-1....3....2....0
%e ..3....3...-1....2....0....3...-1....3...-1....0....3....3....4....0...-2....3
%e .-1....3....2....0....0....4....3....2...-1....3....2....0....2...-2....0....5
%e ..0....0....3...-2....2....0...-2...-2....0...-2...-1....2...-1....0....2....0
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 04 2012
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