%I #5 May 12 2016 18:34:23
%S 0,0,0,0,0,1,6,42,336,3024,27216,299376,3592512,46702656,653837184,
%T 9880206336,158083301376,2687416123392,48373490221056,919096314200064,
%U 18375168222867456,385878532680216576,8489327718964764672,195254537536189587456,4686108900868550098944
%N a(n) = A029572(n) / 24.
%Y Cf. A029572.
%K nonn
%O 0,7
%A _N. J. A. Sloane_.