Number of nX4 0..1 arrays with no element equal to more than two horizontal or vertical neighbors, with new values 0..1 introduced in row major order.
A240480
Number of nX4 0..1 arrays with no element equal to more than two horizontal or vertical neighbors, with new values 0..1 introduced in row major order.
Terms
- a(0) =8a(1) =81a(2) =578a(3) =4104a(4) =29084a(5) =205754a(6) =1455916a(7) =10304849a(8) =72937769a(9) =516249590a(10) =3653997013a(11) =25862854244a(12) =183056241833
External references
- oeis: A240480