268028

Appears in sequences

• Triangle read by rows, T(n, k) = Sum_{j=0..k} |Stirling1(n, j)|.at n=48A349782
• Irregular triangle read by rows: T(n,k) is the number of n-permutations whose fourth-longest cycle has length exactly k; n >= 0, 0 <= k <= floor(n/4).at n=15A350273
• Triangle read by rows: T(n,k) is the number of n-permutations whose fourth-shortest cycle has length exactly k; n >= 0, 0 <= k <= max(0,n-3).at n=24A350274
• a(n) = Sum_{k=0..n} |Stirling1(3*n,k)|.at n=3A392771