%I

%S 3,20,836,201620,281496540,2380096698130,128314914063822802,

%T 46152578104448335601514,114857924445009628731733814896

%N Number of n X n 0..2 arrays with rows and columns, considered as 3-ary numbers, in strictly increasing order

%K nonn

%O 1,1

%A _R. H. Hardin_ Jun 25 2009