Number of nX2 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than or equal to itself.
A265961
Number of nX2 integer arrays with each element equal to the number of horizontal, vertical and antidiagonal neighbors less than or equal to itself.
Terms
- a(0) =3a(1) =8a(2) =50a(3) =1491a(4) =7741a(5) =82424a(6) =763505a(7) =6210500a(8) =59946891a(9) =519317082a(10) =4648314729a(11) =41998409548a(12) =372087286538
External references
- oeis: A265961