Number of permutations p of [n] such that the up-down signature of 0,p has nonnegative partial sums with a maximal value of six.
A316393
Number of permutations p of [n] such that the up-down signature of 0,p has nonnegative partial sums with a maximal value of six.
Terms
- a(0) =1a(1) =6a(2) =261a(3) =1890a(4) =52022a(5) =455231a(6) =11174035a(7) =116105272a(8) =2810232512a(9) =34036483163a(10) =844691910962
External references
- oeis: A316393