%I
%S 0,4,140,7940,903332,221410052,120864516084,149656305350148,
%T 425051698921207676,2789532529161418879776,42518582519087835706922360,
%U 1510724712014268724836823960708,125472358126936901810932026644960976
%N Number of defective 3colorings of an n X n 0..2 array connected horizontally and vertically with exactly one mistake and colors introduced in rowmajor 0..2 order
%C Diagonal of A229460
%H R. H. Hardin, <a href="/A229453/b229453.txt">Table of n, a(n) for n = 1..14</a>
%e Some solutions for n=3
%e ..0..1..2....0..1..1....0..1..2....0..1..0....0..1..2....0..1..1....0..1..2
%e ..2..0..2....1..0..2....2..2..1....1..2..1....0..2..0....1..0..2....2..0..1
%e ..0..1..0....0..1..0....0..1..0....2..0..0....2..1..2....0..2..1....1..2..2
%K nonn
%O 1,2
%A _R. H. Hardin_ Sep 24 2013
