Number of permutations p of [n] such that the up-down signature of 0,p has nonnegative partial sums with a maximal value of five.
A316392
Number of permutations p of [n] such that the up-down signature of 0,p has nonnegative partial sums with a maximal value of five.
Terms
- a(0) =1a(1) =5a(2) =129a(3) =819a(4) =16066a(5) =127538a(6) =2423226a(7) =23367449a(8) =459383574a(9) =5246611332a(10) =109138956326
External references
- oeis: A316392