Numbers n such that sigma(n) - tau(n) is a perfect number.
A219036
Numbers n such that sigma(n) - tau(n) is a perfect number.
Terms
- a(0) =7a(1) =21a(2) =25a(3) =29a(4) =246a(5) =286a(6) =2688a(7) =4062a(8) =33550337a(9) =4294934526a(10) =5658405646a(11) =5726153206a(12) =5726306566a(13) =6987790105a(14) =7533178601
External references
- oeis: A219036