186745domain: NAppears in sequencesTerms of A072390 (sums of two powers of 13) divided by 2.at n=18A073220RMS values of the RMS numbers: a(n) is the root mean square of the divisors of A140480(n).at n=28A141812a(n) = n^3*(n^2 + 1)/2.at n=13A168178