Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and with no two consecutive increases.

A263641

Number of length n arrays of permutations of 0..n-1 with each element moved by -6 to 6 places and with no two consecutive increases.

Terms

    a(0) =1a(1) =2a(2) =5a(3) =17a(4) =70a(5) =349a(6) =2017a(7) =9673a(8) =36321a(9) =138420a(10) =511748a(11) =1952716a(12) =7596839a(13) =30518737a(14) =122761971a(15) =492354214a(16) =1954807815a(17) =7749597167a(18) =30587342598a(19) =120939248751a(20) =478688493595

External references