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%I #4 Mar 23 2014 07:08:02
%S 114,14788,1864886,232304146,29007348454,3608789598890,
%T 449878848794094,56010829047415956,6979353579795499648,
%U 869236650992435705746,108294631279262866626560,13489190878676390250925510
%N Number of 6Xn 0..3 arrays with no element equal to zero plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4
%C Row 6 of A239649
%H R. H. Hardin, <a href="/A239654/b239654.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=2
%e ..3..1....1..0....1..3....3..0....3..1....3..0....3..1....3..1....1..0....1..0
%e ..2..0....1..0....2..0....3..0....3..2....2..3....3..1....3..0....1..0....2..3
%e ..2..1....1..0....3..2....1..0....1..0....1..2....3..2....3..0....3..0....2..3
%e ..3..1....2..3....3..0....3..1....2..3....3..2....2..1....1..2....1..3....2..3
%e ..1..0....2..3....1..0....3..1....2..1....2..3....3..1....2..0....3..0....3..0
%e ..3..0....3..1....3..2....1..2....2..0....2..3....3..1....1..2....1..0....3..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 23 2014