Number of n X 4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 4 array.
A219700
Number of n X 4 arrays of the minimum value of corresponding elements and their horizontal, vertical or antidiagonal neighbors in a random, but sorted with lexicographically nondecreasing rows and columns, 0..1 n X 4 array.
Terms
- a(0) =4a(1) =7a(2) =25a(3) =64a(4) =158a(5) =374a(6) =841a(7) =1789a(8) =3619a(9) =7008a(10) =13059a(11) =23510a(12) =41018a(13) =69536a(14) =114803a(15) =184969a(16) =291379a(17) =449542a(18) =680313a(19) =1011318a(20) =1478654a(21) =2128898a(22) =3021461a(23) =4231325a(24) =5852203a(25) =8000164a(26) =10817767a(27) =14478750a(28) =19193322a(29) =25214108
External references
- oeis: A219700