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

A234117

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

Terms

    a(0) =673a(1) =12593a(2) =231713a(3) =4279065a(4) =79003521a(5) =1458813409a(6) =26937444801a(7) =497411686793

External references