The floor(n/2)-perfect numbers, where f-perfect numbers for an arithmetical function f are defined in A066218.
A066240
The floor(n/2)-perfect numbers, where f-perfect numbers for an arithmetical function f are defined in A066218.
Terms
- a(0) =18a(1) =20a(2) =70a(3) =104a(4) =464a(5) =1952a(6) =45356a(7) =91388a(8) =130304a(9) =254012a(10) =388076a(11) =437745a(12) =522752a(13) =8382464a(14) =134193152
External references
- oeis: A066240