A234232 - OEIS

A234232

Number of (n+1) X (5+1) 0..7 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 #5 Jun 19 2022 02:24:31

%S 4160672,77499592,1418241440,26695387444,493912218368,9404301310916,

%T 175674272758048,3389953175378924,63975149541235808

%N Number of (n+1) X (5+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 3 (constant-stress 1 X 1 tilings).

%e Some solutions for n=1:

%e 0 6 4 6 2 0 0 0 7 1 4 6 0 0 5 0 1 0 0 0 2 7 6 2

%e 4 7 2 7 0 1 4 1 5 2 2 1 4 1 3 1 5 1 4 1 0 2 4 3

%Y Column 5 of A234233.

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 21 2013