Unitary-sigma unitary-phi perfect numbers.
A092760
Unitary-sigma unitary-phi perfect numbers.
Terms
- a(0) =6a(1) =20a(2) =72a(3) =272a(4) =2808a(5) =5280a(6) =12480a(7) =65792a(8) =251719680a(9) =4295032832a(10) =39462420480
External references
- oeis: A092760