Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array.
A220045
Number of 2 X n arrays of the minimum value of corresponding elements and their horizontal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..3 2 X n array.
Terms
- a(0) =10a(1) =13a(2) =25a(3) =50a(4) =90a(5) =152a(6) =249a(7) =397a(8) =618a(9) =941a(10) =1403a(11) =2050a(12) =2938a(13) =4134a(14) =5717a(15) =7779a(16) =10426a(17) =13779a(18) =17975a(19) =23168a(20) =29530a(21) =37252a(22) =46545a(23) =57641a(24) =70794a(25) =86281a(26) =104403a(27) =125486a(28) =149882a(29) =177970
External references
- oeis: A220045