Total number of occurrences of 9 in the (signed) displacement sets of all permutations of [n+9] divided by 9!.
A324359
Total number of occurrences of 9 in the (signed) displacement sets of all permutations of [n+9] divided by 9!.
Terms
- a(0) =0a(1) =1a(2) =19a(3) =301a(4) =4659a(5) =73651a(6) =1208849a(7) =20736801a(8) =372683159a(9) =7020426511a(10) =138543438429
External references
- oeis: A324359