%I #9 Sep 14 2019 18:19:07
%S 0,0,0,0,16,20,168,168,896,972,4600,4840,20880,22360,93744,99060,
%T 405504,428876,1738080,1828104,7359600,7716240,30982864,32355664,
%U 129654144,135002900,540570160,561187116,2245878544,2325812528
%N Number of 2n-bead balanced binary strings of fundamental period 2n, rotationally equivalent to reverse, inequivalent to complement and reversed complement.
%H Andrew Howroyd, <a href="/A045667/b045667.txt">Table of n, a(n) for n = 0..200</a>
%F a(n) = 2*n*A045685(n).
%F a(n) = A045662(n) - A045665(n). - _Andrew Howroyd_, Sep 14 2019
%Y Cf. A045662, A045665, A045685.
%K nonn
%O 0,5
%A _David W. Wilson_
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