T(n,k)=Number of nXk 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 nXk array.
A219816
T(n,k)=Number of nXk 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 nXk array.
Terms
- a(0) =3a(1) =3a(2) =3a(3) =6a(4) =6a(5) =6a(6) =10a(7) =15a(8) =16a(9) =10a(10) =15a(11) =28a(12) =62a(13) =33a(14) =15a(15) =21a(16) =45a(17) =165a(18) =169a(19) =61a(20) =21a(21) =28a(22) =66a(23) =377a(24) =648a(25) =414a(26) =106a(27) =28a(28) =36a(29) =91
External references
- oeis: A219816