A234910 - OEIS

A234910

Number of (n+1) X (6+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%I #5 Jun 20 2022 01:32:50

%S 2497560,42777680,672221348,13775604012,268581208108,6149073639928,

%T 133204903441540,3259245492367820,74403803878824296,

%U 1896162085005376272

%N Number of (n+1) X (6+1) 0..7 arrays with every 2 X 2 subblock having its diagonal sum differing from its antidiagonal sum by 1, with no adjacent elements equal (constant-stress tilted 1 X 1 tilings).

%e Some solutions for n=1:

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

%e 6 3 2 6 4 7 4 6 3 7 5 6 5 6 6 7 2 3 6 4 6

%Y Column 6 of A234911.

%K nonn

%O 1,1

%A _R. H. Hardin_, Jan 01 2014