The number of coreful perfect numbers (A307958) below 10^n.

A307961

The number of coreful perfect numbers (A307958) below 10^n.

Terms

    a(0) =0a(1) =1a(2) =9a(3) =94a(4) =940a(5) =9359a(6) =93611a(7) =936098a(8) =9361056a(9) =93610484a(10) =936104756a(11) =9361047434

External references