%I #4 Mar 30 2012 18:57:01
%S 0,6,24,120,480,2002,7952,31824,125760,497420,1960464,7726160,
%T 30418752,119759850,471424160,1855967520,7307828352,28781143380,
%U 113380093840,446775310800,1761038703424,6943526580276,27385654785504
%N T(2n+4,n), array T as in A050186; a count of aperiodic binary words.
%K nonn
%O 0,2
%A _Clark Kimberling_