T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nXk array.
A219373
T(n,k)=Number of nXk arrays of the minimum value of corresponding elements and their horizontal or vertical neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..3 nXk array.
Terms
- a(0) =4a(1) =4a(2) =4a(3) =10a(4) =13a(5) =10a(6) =20a(7) =60a(8) =60a(9) =20a(10) =35a(11) =193a(12) =618a(13) =193a(14) =35a(15) =56a(16) =514a(17) =4544a(18) =4544a(19) =514a(20) =56a(21) =84a(22) =1231a(23) =28365a(24) =82312a(25) =28365a(26) =1231a(27) =84a(28) =120a(29) =2748
External references
- oeis: A219373