Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its north neighbor modulo n and the upper left element equal to 0.
A266454
Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its north neighbor modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =3a(2) =357a(3) =442285a(4) =1548940233
External references
- oeis: A266454