160784

Appears in sequences

• Triangle read by rows: T(n,k) = number of permutations p of 1,...,n, with min(|p(i)-p(i-1)|, i=2..n) = k (n>=2, k>=1).at n=40A129534
• Numbers n such that n and n+1 both have 20 divisors.at n=26A274361
• Number T(n,k) of labeled cyclic chord diagrams with n chords such that every chord has length at least k; triangle T(n,k), n>=1, 1<=k<=n, read by rows.at n=40A324428
• Number of labeled cyclic chord diagrams with n chords such that every chord has length at least five.at n=9A324431