Number of nX2 arrays containing 2 copies of 0..n-1 with no equal horizontal, vertical, diagonal or antidiagonal neighbors and new values introduced sequentially from 0.
A265419
Number of nX2 arrays containing 2 copies of 0..n-1 with no equal horizontal, vertical, diagonal or antidiagonal neighbors and new values introduced sequentially from 0.
Terms
- a(0) =0a(1) =0a(2) =0a(3) =4a(4) =48a(5) =584a(6) =8096a(7) =127296a(8) =2241856a(9) =43770144a(10) =939182976a(11) =21981580224a(12) =557527020544
External references
- oeis: A265419