540242

Appears in sequences

• Number of permutations of [n] with exactly 2 increasing runs of length at least 2.at n=6A000363
• 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=32A008971
• Triangle of polynomial coefficients related to the o.g.f.s. of the RBS1 polynomials.at n=17A160486