400020domain: NAppears in sequencesŁukasiewicz words that are also valid asynchronic siteswap juggling patterns.at n=34A071160a(n) = floor(n!*exp(-n)).at n=15A174299Numbers x such that sigma(x)=sigma(T(x)), where sigma(x) is the sum of the divisors of x and T(x) the transform defined in A243993.at n=34A245468