Number of horizontal and antidiagonal neighbor colorings of the even squares of an nX3 array with new integer colors introduced in row major order.
A216333
Number of horizontal 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) =2a(2) =15a(3) =52a(4) =877a(5) =4140a(6) =115975a(7) =678570a(8) =27644437a(9) =190899322a(10) =10480142147a(11) =82864869804
External references
- oeis: A216333