Number of (n+2) X (3+2) 0..3 arrays with each 3 X 3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal.
A234864
Number of (n+2) X (3+2) 0..3 arrays with each 3 X 3 subblock having the sum of its 72 absolute element differences equal to 52, and no adjacent elements equal.
Terms
- a(0) =61954a(1) =272878a(2) =1241772a(3) =6113796a(4) =33431812a(5) =192846644a(6) =1129155378a(7) =6882784048a(8) =43546591390a(9) =271469433824
External references
- oeis: A234864