Number of nX3 arrays containing 3 copies of 0..n-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0.
A265678
Number of nX3 arrays containing 3 copies of 0..n-1 with no equal vertical or antidiagonal neighbors and new values introduced sequentially from 0.
Terms
- a(0) =1a(1) =1a(2) =17a(3) =632a(4) =54920a(5) =7286105a(6) =1365147580a(7) =342267410418
External references
- oeis: A265678