Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and the median of every three consecutive elements nondecreasing.
A263591
Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and the median of every three consecutive elements nondecreasing.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =16a(4) =52a(5) =208a(6) =800a(7) =3360a(8) =16224a(9) =78088a(10) =393408a(11) =2189872a(12) =12371616a(13) =71835000a(14) =448860480a(15) =2871278464a(16) =18727425440a(17) =129070035784a(18) =913845701344
External references
- oeis: A263591