A234166 - OEIS

A234166

Number of (n+1) X (5+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).

%I #6 Jun 19 2022 01:47:28

%S 135752,1353986,13227132,133660366,1337127500,13865878254,

%T 142146253428,1522643238010,16046511409532,178461791019294,

%U 1937406142076504,22439896070267726,250913740402044536,3027301828590118642

%N Number of (n+1) X (5+1) 0..4 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 2 (constant-stress 1 X 1 tilings).

%H R. H. Hardin, <a href="/A234166/b234166.txt">Table of n, a(n) for n = 1..71</a>

%e Some solutions for n=1:

%e 0 0 0 1 0 2 0 1 2 3 2 3 2 2 4 2 2 0 2 4 1 2 3 3

%e 4 2 0 3 4 4 4 3 2 1 2 1 4 2 2 2 0 0 0 4 3 2 1 3

%Y Column 5 of A234169.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 20 2013