260540

Appears in sequences

• Antidiagonal sums of square array A137634.at n=8A137638
• Let s denote the sum of the deficient 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=27A258134