Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its northeast neighbor modulo n and the upper left element equal to 0.
A266654
Number of nX4 arrays of permutations of 4 copies of 0..n-1 with no element 1 greater than its northeast neighbor modulo n and the upper left element equal to 0.
Terms
- a(0) =1a(1) =3a(2) =829a(3) =1044230a(4) =3801147519
External references
- oeis: A266654