253233

Appears in sequences

• E.g.f. A(x) = exp(x+x^2+x^3+x^4+x^5).at n=8A193931
• Triangle read by rows: T(n,k) is the number of nilpotent subpermutations on an n-set, each of nilpotency index less than or equal to k.at n=41A261764
• Number of integer compositions of n whose leaders of weakly increasing runs are not strictly decreasing.at n=18A375140