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%I #5 Aug 11 2014 22:45:54
%S 0,428,5100,310804,10631552,448752816,17477913984,702369644524,
%T 27889180833188,1112507026382520,44300516313730388,
%U 1765247886383707868,70322056553003374268,2801688699959758846796,111617418686821238798432
%N Number of nX6 0..3 arrays x(i,j) with each element horizontally, diagonally or antidiagonally next to at least one element with value (x(i,j)+1) mod 4 and at least one element with value (x(i,j)-1) mod 4, no adjacent elements equal, and upper left element zero
%C Column 6 of A231049
%H R. H. Hardin, <a href="/A231047/b231047.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A231047/a231047.txt">Empirical recurrence of order 93</a>
%F Empirical recurrence of order 93 (see link above)
%e Some solutions for n=4
%e ..0..1..2..3..2..3....0..1..2..1..0..1....0..3..2..3..2..3....0..1..2..1..0..1
%e ..0..3..2..3..0..1....0..3..0..3..2..3....0..1..0..1..0..1....0..3..2..1..2..3
%e ..0..3..0..1..2..1....2..3..0..3..2..3....0..1..0..3..2..3....2..3..0..3..0..3
%e ..0..1..2..1..0..3....2..1..0..3..0..1....2..3..2..1..0..1....2..1..2..1..2..3
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 03 2013
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