Number of nX4 0..3 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.
A222375
Number of nX4 0..3 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal or vertical neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =4a(1) =18a(2) =118a(3) =1391a(4) =20340a(5) =342953a(6) =6221698a(7) =113556454a(8) =2103238076a(9) =38940850866a(10) =724814585064
External references
- oeis: A222375