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%I #4 Dec 21 2015 08:23:35
%S 1,105,1012,4893,53442,841668,9880139,100419691,1161577640,
%T 14330198186,167677854928,1911970639884,22299927996030,
%U 263303415557409,3080790433186207,35842524252682997,418663357107133083
%N Number of 5Xn integer arrays with each element equal to the number of horizontal and antidiagonal neighbors exactly one smaller than itself.
%C Row 5 of A266101.
%H R. H. Hardin, <a href="/A266105/b266105.txt">Table of n, a(n) for n = 1..210</a>
%e Some solutions for n=4
%e ..1..0..0..0....0..0..1..2....0..0..0..1....0..1..1..0....0..0..1..1
%e ..0..0..0..0....0..2..1..1....0..0..1..2....2..1..1..2....1..2..0..1
%e ..1..2..0..0....0..0..0..1....0..1..1..1....0..1..1..0....0..0..1..2
%e ..1..0..0..1....1..1..1..1....1..0..0..0....2..1..0..1....0..2..1..1
%e ..1..2..1..0....1..0..0..1....0..0..0..1....2..1..1..0....0..0..0..0
%Y Cf. A266101.
%K nonn
%O 1,2
%A _R. H. Hardin_, Dec 21 2015
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