101166

Appears in sequences

• Number of permutations of [n] with exactly 2 increasing runs of length at least 2.at n=5A000363
• Triangle read by rows: T(n,k) is the number of permutations of [n] with k increasing runs of length at least 2.at n=27A008971
• Triangle of coefficients arising in expansion of n-th derivative of tan(x) + sec(x).at n=49A198895