The OEIS is supported by the many generous donors to the OEIS Foundation.
%I #3 Mar 30 2012 17:37:01
%S 1,1,1,4,8,38,266,1680,10668,87444,1057140,10108644,114112320,
%T 1404689244,20654453736,294649177704,4556106886632,76389128377296,
%U 1363358922375072,25400563124152944,497084494996824840
%N Shifts left under "CGJ" (necklace, element, labeled) transform.
%K nonn,eigen
%O 1,4
%A _Christian G. Bower_