Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 9.

A234132

Number of (n+1)X(n+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 9.

Terms

    a(0) =32a(1) =152a(2) =488a(3) =1640a(4) =4904a(5) =16424a(6) =53288a(7) =189992a(8) =673832a(9) =2532392a(10) =9515048a(11) =36874280a(12) =142925864a(13) =562745384a(14) =2215886888

External references