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%I #8 Dec 18 2015 18:18:01
%S 3,81,14974,18584111,151596413811,8153351029428092,
%T 2876868686935789680075,6662940552094334528016043729,
%U 101291421007307048419298014635301970
%N Number of n X n 0..2 arrays avoiding the pattern z-2 z-1 z in any row, column, nw-to-se diagonal or ne-to-sw antidiagonal
%C Diagonal of A207550
%e Some solutions for n=4
%e ..0..2..0..2....2..0..0..1....0..2..2..0....0..2..2..2....2..2..1..2
%e ..2..2..0..2....1..1..0..1....1..0..0..0....1..1..0..2....2..1..0..0
%e ..2..0..1..0....0..0..1..0....0..2..1..2....0..0..1..0....1..1..1..0
%e ..0..2..1..0....1..1..0..0....0..0..0..0....1..2..0..2....0..1..0..2
%K nonn
%O 1,1
%A _R. H. Hardin_ Feb 18 2012
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