Odd numbers k such that the powerful part of the sum of divisors of k (A387726) is greater than or equal to k, and sigma(k) is not itself a powerful number.
A387719
Odd numbers k such that the powerful part of the sum of divisors of k (A387726) is greater than or equal to k, and sigma(k) is not itself a powerful number.
Terms
- a(0) =350561925a(1) =960362325a(2) =1051884225a(3) =3857173425a(4) =4558583925
External references
- oeis: A387719