200025domain: NAppears in sequencesSum of factorials of digits of n equals the largest prime factor of n.at n=29A074257Number of reduced words of length n in Coxeter group on 7 generators S_i with relations (S_i)^2 = (S_i S_j)^3 = I.at n=7A162744Composite numbers k such that sum of proper divisors of k divides 2^k-1.at n=17A278315