Number of nX6 0..2 arrays with no more than floor(nX6/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.
A223148
Number of nX6 0..2 arrays with no more than floor(nX6/2) elements equal to at least one horizontal, vertical or antidiagonal neighbor, with new values introduced in row major 0..2 order.
Terms
- a(0) =72a(1) =5721a(2) =487176a(3) =36926759a(4) =2829178640a(5) =219590496125
External references
- oeis: A223148