Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.
A219821
Number of 7Xn arrays of the minimum value of corresponding elements and their horizontal, vertical or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 7Xn array.
Terms
- a(0) =28a(1) =176a(2) =2359a(3) =27340a(4) =358480a(5) =4734774a(6) =59065976a(7) =707079160
External references
- oeis: A219821