Number of length n arrays of permutations of 0..n-1 with each element moved by -2 to 2 places and every three consecutive elements having its maximum within 5 of its minimum.
A263746
Number of length n arrays of permutations of 0..n-1 with each element moved by -2 to 2 places and every three consecutive elements having its maximum within 5 of its minimum.
Terms
- a(0) =1a(1) =2a(2) =6a(3) =14a(4) =31a(5) =73a(6) =160a(7) =357a(8) =814a(9) =1836a(10) =4140a(11) =9379a(12) =21163a(13) =47769a(14) =107940a(15) =243763a(16) =550469a(17) =1243468a(18) =2808345a(19) =6342601a(20) =14325494a(21) =32354798a(22) =73074320a(23) =165043749a(24) =372759852a(25) =841897006a(26) =1901473298a(27) =4294581633a(28) =9699541870a(29) =21906956858
External references
- oeis: A263746