A234554 - OEIS

A234554

Number of (n+1) X (5+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

%I #6 Jun 20 2022 19:34:54

%S 1157728,12632704,135896344,1489279544,16292204064,181336703944,

%T 2016799098648,22906568942748,259836138589312,3026682330138876,

%U 35158611660078320,422430311248593024,5046234781831440192

%N Number of (n+1) X (5+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234554/b234554.txt">Table of n, a(n) for n = 1..16</a>

%e Some solutions for n=1:

%e 0 5 3 0 5 5 0 0 1 6 0 3 0 1 5 3 3 6 0 5 3 4 1 2

%e 3 5 6 0 2 5 0 3 1 3 0 0 3 1 2 3 6 6 3 5 0 4 4 2

%Y Column 5 of A234555.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 28 2013