Number of nX3 0..3 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
A222789
Number of nX3 0..3 arrays with exactly floor(nX3/2) elements unequal to at least one horizontal or antidiagonal neighbor, with new values introduced in row major 0..3 order.
Terms
- a(0) =0a(1) =4a(2) =34a(3) =582a(4) =3800a(5) =92642a(6) =589134a(7) =15697114a(8) =101205850a(9) =2768968458a(10) =17982090240a(11) =499074464184
External references
- oeis: A222789