176319369216domain: NAppears in sequencesa(n) = n^3 * 3^n.at n=16A062074a(n) = ceiling(6^n/n).at n=15A129790a(n) = floor(6^n/n).at n=15A129796Maximum number of inverses of an element in the full symmetric semigroup T_n.at n=17A350646