Number of horizontal and antidiagonal neighbor colorings of the even squares of a 7Xn array with new integer colors introduced in row major order.
A216343
Number of horizontal and antidiagonal neighbor colorings of the even squares of a 7Xn array with new integer colors introduced in row major order.
Terms
- a(0) =15a(1) =409a(2) =115975a(3) =18378580a(4) =41521045376
External references
- oeis: A216343