206276

Appears in sequences

• Number of permutations of [n] with exactly 3 increasing runs of length at least 2.at n=3A000507
• 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=28A008971
• Professor E. P. B. Umbugio's sequence.at n=2A082176
• Triangle of coefficients arising in expansion of n-th derivative of tan(x) + sec(x).at n=51A198895