Number of length-n 0..n arrays with every repeated value unequal to the previous repeated value plus one mod n+1.

A269770

Number of length-n 0..n arrays with every repeated value unequal to the previous repeated value plus one mod n+1.

Terms

    a(0) =2a(1) =9a(2) =64a(3) =620a(4) =7680a(5) =115920a(6) =2063880a(7) =42342912a(8) =983566800a(9) =25515160000a(10) =731128554024

External references