A234330 - OEIS

A234330

Number of (n+1) X (5+1) 0..3 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 19 2022 02:38:58

%S 71936,1603680,37234216,886832036,21167182224,508700005648,

%T 12196560180032,293794019734704,7055459026652800,170202461638390064,

%U 4092483758218597696,98860093596403529172,2379927695576637881032

%N Number of (n+1) X (5+1) 0..3 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="/A234330/b234330.txt">Table of n, a(n) for n = 1..152</a>

%e Some solutions for n=1:

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

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

%Y Column 5 of A234333.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 23 2013