The floor[n^(3/4)]-perfect numbers, where f-perfect numbers for an arithmetical function f is defined in A066218.

A066363

The floor[n^(3/4)]-perfect numbers, where f-perfect numbers for an arithmetical function f is defined in A066218.

Terms

    a(0) =2a(1) =4a(2) =8a(3) =10a(4) =16a(5) =98a(6) =236a(7) =244a(8) =268a(9) =284a(10) =292a(11) =316a(12) =332a(13) =638a(14) =2198a(15) =2282a(16) =2338a(17) =2422a(18) =2674a(19) =4653a(20) =12274a(21) =30753a(22) =65018a(23) =225267a(24) =231478a(25) =289605a(26) =376995a(27) =422684a(28) =449756a(29) =453092

External references