Number of n X 2 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor.
A198908
Number of n X 2 0..7 arrays with values 0..7 introduced in row major order and no element equal to any horizontal or vertical neighbor.
Terms
- a(0) =1a(1) =4a(2) =34a(3) =500a(4) =10867a(5) =313132a(6) =10856948a(7) =418689772a(8) =17067989413a(9) =715189507700
External references
- oeis: A198908