Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6.
A233630
Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the absolute values of the edge differences equal to 6.
Terms
- a(0) =4974a(1) =150054a(2) =4350820a(3) =130732438a(4) =3912088926a(5) =117571581104
External references
- oeis: A233630