Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array.
A219918
Number of 5Xn arrays of the minimum value of corresponding elements and their horizontal, diagonal, diagonal or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and nonincreasing columns, 0..2 5Xn array.
Terms
- a(0) =15a(1) =21a(2) =155a(3) =819a(4) =3800a(5) =16159a(6) =65802a(7) =262840a(8) =1033491a(9) =3983613a(10) =14992543a(11) =55035788a(12) =197291298a(13) =692007090a(14) =2378947973a(15) =8024418500a(16) =26575612774a(17) =86454342449a(18) =276372974756a(19) =868539256771
External references
- oeis: A219918