%I #6 Mar 12 2017 23:23:57
%S 1,6,30,223,1722,14430,125322,1123612,10303798,96228900,911986784,
%T 8749074498,84797323618,829080237870
%N Number of n-bead necklaces labeled with numbers -5..5 not allowing reversal, with sum zero with no three beads in a row equal.
%C Column 5 of A208945.
%e Some solutions for n=5:
%e .-5...-4...-3...-4...-5...-5...-4...-4...-3...-3...-5...-4...-5...-5...-5...-5
%e ..3...-2...-3....1....4...-1...-3...-1....4...-3....0....1...-3....2....4....5
%e .-2...-2....1....1...-3....3....4....1...-2....2...-1....2....0...-2....5....1
%e ..2....3....1...-3....4....3...-1....4....2....3....3...-1....4....5...-3....0
%e ..2....5....4....5....0....0....4....0...-1....1....3....2....4....0...-1...-1
%K nonn
%O 1,2
%A _R. H. Hardin_, Mar 03 2012