Number of 2nX4 0..2 arrays with values 0..2 introduced in row major order and each element equal to an odd number of horizontal and vertical neighbors.
A198475
Number of 2nX4 0..2 arrays with values 0..2 introduced in row major order and each element equal to an odd number of horizontal and vertical neighbors.
Terms
- a(0) =12a(1) =252a(2) =6104a(3) =153222a(4) =3935188a(5) =101884208a(6) =2646874462a(7) =68861880812
External references
- oeis: A198475