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%I #5 Aug 11 2014 22:46:11
%S 28,698,16449,394509,9340070,222457036,5277728354,125489197292,
%T 2979675864286,70809806218933,1681881988746468,39960823740980549,
%U 949269180927265463,22552572727646416085,535760871479260663596
%N Number of 4Xn 0..3 arrays with no element equal to one plus the sum of elements to its left or two plus the sum of the elements above it, modulo 4
%C Row 4 of A239405
%H R. H. Hardin, <a href="/A239408/b239408.txt">Table of n, a(n) for n = 1..210</a>
%H R. H. Hardin, <a href="/A239408/a239408.txt">Empirical recurrence of order 91</a>
%F Empirical recurrence of order 91 (see link above)
%e Some solutions for n=3
%e ..0..0..0....0..3..3....0..3..3....3..3..0....3..1..3....0..0..3....3..3..0
%e ..0..0..0....3..2..3....3..3..2....0..0..0....2..0..2....3..3..0....0..0..0
%e ..3..1..3....0..0..2....3..1..2....3..2..1....2..0..2....0..3..3....0..0..0
%e ..3..2..0....2..1..3....2..0..2....2..0..0....3..1..3....0..2..2....0..2..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Mar 17 2014
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