4495808domain: NAppears in sequencesNumbers k whose abundance sigma(k) - 2*k = -16. Numbers k whose deficiency is 16.at n=21A125248Numbers k such that sigma(k) == 0 (mod k-8).at n=31A274562Numbers n for which A294898(n) is not zero and A294898(n) divides A000120(n); numbers for which A326130(n) = abs(A294898(n)).at n=38A326132