Primitive e-unitary perfect numbers: powerful numbers k for which A322857(k) = 2*k.
A391281
Primitive e-unitary perfect numbers: powerful numbers k for which A322857(k) = 2*k.
Terms
- a(0) =36a(1) =1800a(2) =2700a(3) =4769856a(4) =238492800a(5) =357739200
External references
- oeis: A391281