%I #4 Mar 27 2014 09:17:27
%S 129,15266,2405330,366379173,54668820459,8243207656791,
%T 1246285848518417,188159790209407764,28411744326144591606,
%U 4291882371849878160532,648352047493507989834712,97941932841918812449706827
%N Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or one plus the sum of the elements above it, modulo 4
%C Row 6 of A239819
%H R. H. Hardin, <a href="/A239824/b239824.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..2..3....2..3....3..2....2..3....2..0....2..3....3..0....3..0....2..0....2..0
%e ..1..3....1..2....1..0....2..3....1..0....2..3....2..3....2..0....1..0....1..2
%e ..1..0....2..1....3..1....2..0....1..0....3..2....1..2....1..2....3..0....3..1
%e ..3..2....1..2....1..3....1..2....3..0....3..2....1..3....1..0....2..3....1..3
%e ..3..2....1..0....3..1....1..0....3..0....2..1....1..2....2..0....3..2....3..1
%e ..1..2....3..0....3..1....3..2....1..2....2..3....3..2....3..1....3..0....2..3
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 27 2014