Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 5 of its minimum.

A263745

Number of length n arrays of permutations of 0..n-1 with each element moved by -n to n places and every three consecutive elements having its maximum within 5 of its minimum.

Terms

    a(0) =1a(1) =1a(2) =2a(3) =6a(4) =24a(5) =120a(6) =720a(7) =2400a(8) =5424a(9) =11568a(10) =26796a(11) =68966a(12) =198332a(13) =558032a(14) =1509568a(15) =3898288a(16) =9694608a(17) =23885448a(18) =59953920a(19) =152383072a(20) =389677200a(21) =996510496

External references