Number of 2nX6 0..4 arrays with values 0..4 introduced in row major order and each element equal to exactly one horizontal and vertical neighbor.
A198407
Number of 2nX6 0..4 arrays with values 0..4 introduced in row major order and each element equal to exactly one horizontal and vertical neighbor.
Terms
- a(0) =377a(1) =5057327a(2) =85013617830
External references
- oeis: A198407