Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.
A219691
Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.
Terms
- a(0) =28a(1) =98a(2) =1506a(3) =18486a(4) =220182a(5) =2706117a(6) =35011623a(7) =461414270a(8) =5979059010a(9) =75005582670
External references
- oeis: A219691