%I #6 Apr 11 2023 13:41:17

%S 646240,638602,1489310,7437150,30756372,196170260,954233428,

%T 4184013494,23948788480,123736222078,533052293254,3116669936220,

%U 15687449192482,68617590941736,395367044525650,2007468414696700,8759855652090420

%N Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock diagonal maximum plus antidiagonal minimum unequal to its neighbors horizontally, vertically and ne+sw antidiagonally.

%C Column 6 of A253407.

%H R. H. Hardin, <a href="/A253405/b253405.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1

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

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

%Y Cf. A253407.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 31 2014