Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an n X 5 array with new integer colors introduced in row major order.
A215845
Number of horizontal, vertical, diagonal and antidiagonal neighbor colorings of the even squares of an n X 5 array with new integer colors introduced in row major order.
Terms
- a(0) =1a(1) =2a(2) =5a(3) =102a(4) =1250a(5) =159712a(6) =4851360a(7) =1590366402a(8) =83943993818
External references
- oeis: A215845