Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.
A265191
Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no equal horizontal or antidiagonal neighbors and new values introduced sequentially from 0.
Terms
- a(0) =0a(1) =1a(2) =42a(3) =20592a(4) =20957398a(5) =38833756515
External references
- oeis: A265191