Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

A234416

Number of (n+1)X(3+1) 0..7 arrays with every 2X2 subblock having the absolute values of all six edge and diagonal differences no larger than 1.

Terms

    a(0) =2848a(1) =56768a(2) =1131708a(3) =22692600a(4) =455740110a(5) =9162597900a(6) =184360780592

External references