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Number of nX6 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.
1

%I #4 Dec 20 2015 07:42:33

%S 55,13796,2045306,408513208,82171346791,16683384355551,

%T 3378465528248312,684927787385220826,138808963888717658013,

%U 28134602812633017755802,5702283377553374012400094,1155743488848677525676248667

%N Number of nX6 integer arrays with each element equal to the number of horizontal and antidiagonal neighbors less than itself.

%C Column 6 of A266033.

%H R. H. Hardin, <a href="/A266031/b266031.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=2

%e ..0..2..3..1..2..0....0..3..0..3..0..1....0..0..0..3..0..0....0..0..2..2..0..1

%e ..1..0..0..2..0..1....1..0..1..1..3..0....1..3..0..2..3..0....0..0..1..1..3..0

%Y Cf. A266033.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 20 2015