Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

A233729

Number of (n+1)X(4+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6 and no adjacent elements equal.

Terms

    a(0) =2104a(1) =21432a(2) =233432a(3) =2723072a(4) =32240288a(5) =389230764a(6) =4696134192a(7) =57174669348a(8) =693181060760

External references