150750domain: NAppears in sequencesLet s denote the sum of the abundant numbers in the aliquot parts of x. Sequence lists numbers x such that sigma(s) = usigma(x), where usigma(x) is the sum of the unitary divisors of x (A034448).at n=27A258135Number of minimum total dominating sets in the n-Goldberg graph.at n=15A382657