Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and the median of every three consecutive elements nondecreasing.
A263595
Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 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) =2900a(8) =10960a(9) =40792a(10) =148288a(11) =544600a(12) =2000084a(13) =7312332a(14) =26795812a(15) =98234356a(16) =359845004a(17) =1319030780a(18) =4834945864a(19) =17718152672a(20) =64944710636a(21) =238041386504a(22) =872396576888
External references
- oeis: A263595