5473441domain: NPropertiesPrimalityPrimeyesAppears in sequencesa(n) = n! * sum 1/k! where the sum is over all positive integers k that divide n.at n=9A057625Expansion of e.g.f. exp(x/(1 - x^4)).at n=10A293507E.g.f.: Product_{m>=0} exp(-x^(4*m+1)).at n=10A293566Prime numbersat n=379094