Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 6.
A233677
Number of (n+1)X(3+1) 0..3 arrays with every 2X2 subblock having the sum of the squares of the edge differences equal to 6.
Terms
- a(0) =648a(1) =4448a(2) =28544a(3) =216592a(4) =1500800a(5) =11482368a(6) =81243904a(7) =617735680a(8) =4416166400a(9) =33345630720a(10) =240057191680
External references
- oeis: A233677