Number of diagonal and antidiagonal neighbor colorings of the odd squares of an n X 3 array with new integer colors introduced in row major order.
A215921
Number of diagonal and antidiagonal neighbor colorings of the odd squares of an n X 3 array with new integer colors introduced in row major order.
Terms
- a(0) =1a(1) =2a(2) =4a(3) =42a(4) =136a(5) =2906a(6) =12840a(7) =433252a(8) =2387180a(9) =113503692a(10) =742181112a(11) =46538017584a(12) =350038464728
External references
- oeis: A215921