%I #3 Mar 31 2012 12:35:46
%S 1,2,2,8,160,8576,2476032
%N Number of triangular nXnXn arrays with each row k a permutation of 0..k-1 and no element having neighbors with sum mod 3 = 2
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 01 2010
