Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an nX3 array with new integer colors introduced in row major order.
A215844
Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an nX3 array with new integer colors introduced in row major order.
Terms
- a(0) =1a(1) =1a(2) =4a(3) =8a(4) =102a(5) =364a(6) =8460a(7) =40612a(8) =1440676a(9) =8520924a(10) =419195864a(11) =2916070032a(12) =187464151920
External references
- oeis: A215844