Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array.
A219935
Number of nX4 arrays of the minimum value of corresponding elements and their horizontal or diagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 nX4 array.
Terms
- a(0) =20a(1) =196a(2) =2070a(3) =21512a(4) =224794a(5) =2225355a(6) =20434119a(7) =175334420a(8) =1420391511a(9) =10944254668a(10) =80614381602a(11) =569751343450
External references
- oeis: A219935