48934368domain: NAppears in sequencesa(n) = 3^5 * binomial(n+4, 5).at n=27A113335Triangular array read by rows: T(n,k) is the number of endofunctions f:{1,2,...,n}-> {1,2,...,n} whose largest component has exactly k nodes; n>=1, 1<=k<=n.at n=41A209324