Number of 4Xn 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 columns, 0..2 4Xn array.
A219384
Number of 4Xn 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 columns, 0..2 4Xn array.
Terms
- a(0) =15a(1) =53a(2) =344a(3) =2275a(4) =11861a(5) =60738a(6) =278221a(7) =1210223a(8) =4982663a(9) =19591906a(10) =73766878a(11) =266405385a(12) =926295032a(13) =3109222072a(14) =10103620683a(15) =31853913050a(16) =97605116782a(17) =291102100195a(18) =846145644323
External references
- oeis: A219384