3-infinitary perfect numbers k: 3-i-sigma(k) = 2*k, where 3-i-sigma = A049418.

A038182

3-infinitary perfect numbers k: 3-i-sigma(k) = 2*k, where 3-i-sigma = A049418.

Terms

    a(0) =6a(1) =28a(2) =3024a(3) =6552a(4) =27578880a(5) =49266240

External references