Number of length-n 0..n arrays with no repeated value differing from the previous repeated value by plus or minus one modulo n+1.
A269683
Number of length-n 0..n arrays with no repeated value differing from the previous repeated value by plus or minus one modulo n+1.
Terms
- a(0) =2a(1) =9a(2) =64a(3) =615a(4) =7584a(5) =114205a(6) =2031072a(7) =41651631a(8) =967466240a(9) =25102071621a(10) =719516990160
External references
- oeis: A269683