%I #4 Sep 22 2004 03:00:00
%S 1,4,22,126,748,4532,27853,172965,1082628,6818768,43163792,274370868,
%T 1750133503
%N Number of directed animals on a certain lattice.
%K nonn
%O 0,2
%A Alain Denise (Alain.Denise(AT)lri.fr)