Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.
A219920
Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.
Terms
- a(0) =28a(1) =57a(2) =789a(3) =7877a(4) =76385a(5) =715430a(6) =6705546a(7) =63193592
External references
- oeis: A219920