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1/8 the number of triangular nXnXn arrays of integers in 1..8 with no element or any of its neighbors having the same value
0

%I #3 Mar 31 2012 12:35:46

%S 1,42,2520,136080,6531840,314616960

%N 1/8 the number of triangular nXnXn arrays of integers in 1..8 with no element or any of its neighbors having the same value

%K nonn

%O 1,2

%A _R. H. Hardin_ Sep 01 2010