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%I #5 Mar 31 2012 12:37:00
%S 96,864,7776,69984,629856,5668704,51018336,459165024,4132485216,
%T 37192366944,334731302496,3012581722464,27113235502176,
%U 244019119519584,2196172075676256,19765548681086304,177889938129776736
%N Number of (n+1)X4 0..2 arrays with no 2X2 subblock having equal diagonal elements or equal antidiagonal elements, and new values 0..2 introduced in row major order
%C Column 3 of A203984
%H R. H. Hardin, <a href="/A203979/b203979.txt">Table of n, a(n) for n = 1..210</a>
%F Empirical: a(n) = 96*9^(n-1)
%e Some solutions for n=4
%e ..0..0..0..0....0..1..2..2....0..0..1..2....0..1..0..2....0..1..0..0
%e ..1..2..2..1....2..1..0..0....2..2..1..0....2..2..0..1....2..2..2..1
%e ..1..0..0..0....2..1..2..1....0..0..1..0....1..1..0..1....0..0..0..0
%e ..1..2..2..1....0..0..2..0....2..2..2..2....2..2..2..1....1..1..1..1
%e ..0..0..0..0....1..1..1..0....0..0..1..1....0..0..0..0....2..2..2..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Jan 09 2012
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