Number of nX3 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..3 nX3 array.
A220199
Number of nX3 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..3 nX3 array.
Terms
- a(0) =10a(1) =36a(2) =238a(3) =1013a(4) =3916a(5) =15067a(6) =58288a(7) =218422a(8) =773169a(9) =2583728a(10) =8224585a(11) =25167752a(12) =74507806a(13) =214204816a(14) =599356409a(15) =1634563737a(16) =4349942989a(17) =11308092511a(18) =28744810615a(19) =71518831786a(20) =174334969663a(21) =416723727408a(22) =977666680868
External references
- oeis: A220199