A234188 - OEIS

A234188

Number of (n+1) X (4+1) 0..6 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 01:57:32

%S 307598,6788640,153306026,3523122268,80718738808,1866058872810,

%T 42943618264812,996725094813118,23023676006094958,536564105183552532,

%U 12441805111891451908,291213198731635585874,6779802798011996820116

%N Number of (n+1) X (4+1) 0..6 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="/A234188/b234188.txt">Table of n, a(n) for n = 1..67</a>

%e Some solutions for n=1:

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

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

%Y Column 4 of A234190.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 20 2013