Number of nX3 0..3 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal.
A206962
Number of nX3 0..3 arrays avoiding the pattern z z+1 z in any row, column or nw-to-se diagonal.
Terms
- a(0) =61a(1) =3721a(2) =188699a(3) =9499613a(4) =480085367a(5) =24271094606
External references
- oeis: A206962