Number of horizontal and antidiagonal neighbor colorings of the even squares of a 3Xn array with new integer colors introduced in row major order.
A216339
Number of horizontal and antidiagonal neighbor colorings of the even squares of a 3Xn array with new integer colors introduced in row major order.
Terms
- a(0) =2a(1) =3a(2) =15a(3) =42a(4) =602a(5) =2440a(6) =61915a(7) =322776a(8) =12297978a(9) =77360796a(10) =4044784633a(11) =29562890886
External references
- oeis: A216339