Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nX4 array.
A219824
Number of nX4 arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nX4 array.
Terms
- a(0) =20a(1) =87a(2) =2106a(3) =29403a(4) =372346a(5) =4032736a(6) =40480756a(7) =386360710a(8) =3509148085a(9) =30177584694a(10) =245663212570
External references
- oeis: A219824