Sum of the first n even superperfect numbers (A061652).
A153475
Sum of the first n even superperfect numbers (A061652).
Terms
- a(0) =2a(1) =6a(2) =22a(3) =86a(4) =4182a(5) =69718a(6) =331862a(7) =1074073686
External references
- oeis: A153475
A153475
Sum of the first n even superperfect numbers (A061652).