A234664 - OEIS

A234664

Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).

%I #5 Jun 20 2022 19:42:28

%S 2564388,8659270,29828832,109044744,406314140,1591037136,6340767776,

%T 26370069748,111476657864,489100455892,2179024286836

%N Number of (n+1) X (6+1) 0..6 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 4 (constant-stress 1 X 1 tilings).

%e Some solutions for n=1:

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

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

%Y Column 6 of A234665.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 29 2013