T(n,k)=Number of nXk 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 nXk array.
A219686
T(n,k)=Number of nXk 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 nXk array.
Terms
- a(0) =3a(1) =3a(2) =3a(3) =6a(4) =4a(5) =6a(6) =10a(7) =8a(8) =9a(9) =10a(10) =15a(11) =14a(12) =31a(13) =19a(14) =15a(15) =21a(16) =22a(17) =87a(18) =99a(19) =35a(20) =21a(21) =28a(22) =32a(23) =208a(24) =427a(25) =269a(26) =60a(27) =28a(28) =36a(29) =44
External references
- oeis: A219686