80951270401domain: NAppears in sequencesExpansion of Sum_{n>0} n*n!*x^n/(1-n!*x^n).at n=12A158615a(n) = n*n! + 1 = (n+1)! - n! + 1.at n=13A188914a(n) = Sum_{d|n} d*d!.at n=12A321875a(n) = n! * Sum_{d|n} (n/d)^d / d!.at n=12A354843a(n) = n! * Sum_{d|n} (n/d) / d!.at n=12A354863a(n) = -n! * Sum_{d|n} (-n/d)^d / d!.at n=12A363697