322039

Properties

Appears in sequences

• Number T(n,k) of permutations p of [n] such that the up-down signature of p has nonnegative partial sums with a maximal value of k; triangle T(n,k), n>=0, 0<=k<=n, read by rows.at n=57A262125
• Number of permutations p of [n] such that the up-down signature of p has nonnegative partial sums with a maximal value of two.at n=8A320976
• Prime numbersat n=27772