Number of nX3 0..n+3-2 arrays with upper left zero and lower right n+3-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.
A265461
Number of nX3 0..n+3-2 arrays with upper left zero and lower right n+3-2 and each element differing from its horizontal and antidiagonal neighbors by one or two.
Terms
- a(0) =1a(1) =26a(2) =550a(3) =9808a(4) =290140a(5) =8526762a(6) =226627855a(7) =6429210362a(8) =189020997503
External references
- oeis: A265461