%I #4 Nov 02 2013 11:07:15
%S 0,16,182,10914,465638,20549430,899786196,39531660010,1735714471900,
%T 76213836360618,3346443118527598,146938989787609588,
%U 6451913103215823902,283296068073088420816,12439202883241219243898,546191007683593063562226
%N Number of nX4 0..3 arrays x(i,j) with each element horizontally, vertically 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, and upper left element zero
%C Column 4 of A230994
%H R. H. Hardin, <a href="/A230992/b230992.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=3
%e ..0..1..3..0....0..1..0..3....0..3..3..0....0..1..3..0....0..3..1..0
%e ..3..2..1..1....3..2..1..2....1..2..2..1....3..2..0..1....1..2..3..2
%e ..3..0..3..2....0..1..0..3....1..0..3..0....2..1..3..2....1..0..0..1
%K nonn
%O 1,2
%A _R. H. Hardin_, Nov 02 2013
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