A234441 - OEIS

A234441

Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

%I #6 Jun 20 2022 00:30:22

%S 23520,324556,4221580,59991972,790261148,11533082488,153582428536,

%T 2303823299344,30988558369076,477592381790200,6479933659900164,

%U 102441388245104972,1399574362250420144,22641148929701524076

%N Number of (n+1) X (6+1) 0..2 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234441/b234441.txt">Table of n, a(n) for n = 1..210</a>

%e Some solutions for n=1:

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

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

%Y Column 6 of A234443.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 26 2013