Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18.
A233996
Number of (n+1)X(7+1) 0..6 arrays with every 2X2 subblock having the sum of the absolute values of all six edge and diagonal differences equal to 18.
Terms
- a(0) =1995424a(1) =4923910a(2) =11510748a(3) =39038268a(4) =117312896a(5) =533896296a(6) =1997753492a(7) =12585162304a(8) =57382924232
External references
- oeis: A233996