Number of nX4 0..2 arrays with exactly floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A222484
Number of nX4 0..2 arrays with exactly floor(nX4/2) elements unequal to at least one horizontal, diagonal or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =3a(1) =5a(2) =33a(3) =270a(4) =3219a(5) =34851a(6) =374375a(7) =3973169a(8) =42982280a(9) =460903822a(10) =4976455334a(11) =53808006211a(12) =581903007779
External references
- oeis: A222484