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%I #4 Dec 19 2015 11:16:50
%S 1,2,66,7,1,5,137,82,118,178,354,853,1574,3143,6240,11295,22586,46672,
%T 103020,212861,423225,875790,1853269,4033811,8686030,18595574,
%U 40704019,89768106,200052780,449679282,1015358749,2306160010,5269874673
%N Number of 6Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors not equal to itself.
%C Row 6 of A265991.
%H R. H. Hardin, <a href="/A265996/b265996.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..2..2..1....1..3..1..1....1..3..1..1....1..2..2..1....1..3..1..1
%e ..1..1..1..1....1..1..3..2....1..1..3..2....1..1..1..1....1..1..4..2
%e ..1..4..3..2....1..3..4..2....1..3..4..2....1..3..3..2....1..3..3..2
%e ..2..3..4..1....2..3..3..1....2..3..3..1....2..4..3..1....2..4..3..1
%e ..1..1..1..1....1..1..1..1....2..4..1..1....2..3..1..1....2..3..1..1
%e ..1..2..2..1....1..2..2..1....1..1..3..1....1..1..3..1....1..1..3..1
%Y Cf. A265991.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 19 2015