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%I #4 Dec 21 2015 08:24:21
%S 1,272,3928,26948,457738,12401485,240721036,3915407831,72703138725,
%T 1459414293797,27836081746405,518910020345998,9822723169066292,
%U 186833710020397058,3546385987603510610,67356747007063872600
%N Number of 6Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
%C Row 6 of A266101.
%H R. H. Hardin, <a href="/A266106/b266106.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..0..0..1..2....0..2..1..2....1..0..2..1....1..0..2..1....1..0..0..1
%e ..0..2..1..1....1..0..1..1....1..1..0..1....1..1..0..0....0..2..1..1
%e ..0..0..0..0....0..2..0..1....2..1..2..0....2..1..2..0....1..0..0..0
%e ..0..0..0..0....1..0..2..1....1..0..0..1....2..1..0..0....0..0..2..1
%e ..1..2..0..0....0..0..0..1....0..0..1..1....2..1..2..1....1..1..0..1
%e ..1..0..0..1....1..1..1..0....1..1..0..0....1..0..0..0....2..1..2..0
%Y Cf. A266101.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 21 2015
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