Number of horizontal and antidiagonal neighbor colorings of the even squares of an n X 2 array with new integer colors introduced in row major order.
A216332
Number of horizontal and antidiagonal neighbor colorings of the even squares of an n X 2 array with new integer colors introduced in row major order.
Terms
- a(0) =1a(1) =2a(2) =3a(3) =10a(4) =27a(5) =114a(6) =409a(7) =2066a(8) =9089a(9) =52922a(10) =272947a(11) =1788850a(12) =10515147a(13) =76282138a(14) =501178937a(15) =3974779402a(16) =28773452321a(17) =247083681522
External references
- oeis: A216332