Number of nX3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX3 array.
A219622
Number of nX3 arrays of the minimum value of corresponding elements and their horizontal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..2 nX3 array.
Terms
- a(0) =6a(1) =24a(2) =130a(3) =566a(4) =2134a(5) =7259a(6) =22715a(7) =66250a(8) =181791a(9) =472662a(10) =1171147a(11) =2778770a(12) =6339690a(13) =13957189a(14) =29741892a(15) =61507243a(16) =123727812a(17) =242584792a(18) =464390356a(19) =869376931a(20) =1593851835a(21) =2865176320a(22) =5056094746a(23) =8767828033a(24) =14955331206
External references
- oeis: A219622