Number of nX4 0..1 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..1 order.
A222699
Number of nX4 0..1 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..1 order.
Terms
- a(0) =4a(1) =16a(2) =62a(3) =359a(4) =2002a(5) =12101a(6) =73901a(7) =460669a(8) =2883822a(9) =18178638a(10) =115115070a(11) =732065684a(12) =4669781881a(13) =29871691523a(14) =191531922013
External references
- oeis: A222699