Odd solutions to abs(sigma(k) - 2k) <= log(k). Numbers k whose abundance-radius does not exceed log(k).

A088012

Odd solutions to abs(sigma(k) - 2k) <= log(k). Numbers k whose abundance-radius does not exceed log(k).

Terms

    a(0) =1155a(1) =8925a(2) =32445a(3) =442365a(4) =159030135a(5) =815634435a(6) =2586415095

External references