Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A222645
Number of nX4 0..2 arrays with no more than floor(nX4/2) elements unequal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =4a(1) =12a(2) =61a(3) =457a(4) =3411a(5) =31487a(6) =317655a(7) =3161392a(8) =31436637a(9) =315944445a(10) =3182997999a(11) =32059374557a(12) =323386403994
External references
- oeis: A222645