T(n,k)=Number of nXk 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 nXk array.
A219939
T(n,k)=Number of nXk 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 nXk array.
Terms
- a(0) =4a(1) =4a(2) =10a(3) =10a(4) =23a(5) =20a(6) =20a(7) =64a(8) =76a(9) =35a(10) =35a(11) =196a(12) =368a(13) =208a(14) =56a(15) =56a(16) =459a(17) =2070a(18) =2030a(19) =519a(20) =84a(21) =84a(22) =918a(23) =8523a(24) =21512a(25) =10791a(26) =1212a(27) =120a(28) =120a(29) =1660
External references
- oeis: A219939