127538

Appears in sequences

• Number T(n,k) of permutations p of [n] such that the up-down signature of 0,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=60A258829
• Number of permutations p of [2n] such that the up-down signature of 0,p has nonnegative partial sums with a maximal value of n.at n=5A266947
• 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.at n=5A316392