Number of nX5 0..3 arrays with no element equal to another within two positions in the same row or column, and new values 0..3 introduced in row major order.
A206689
Number of nX5 0..3 arrays with no element equal to another within two positions in the same row or column, and new values 0..3 introduced in row major order.
Terms
- a(0) =4a(1) =116a(2) =704a(3) =4704a(4) =31504a(5) =213788a(6) =1454810a(7) =9933294a(8) =67923354a(9) =464901756a(10) =3183631874a(11) =21807955698a(12) =149409637478
External references
- oeis: A206689