Highly abundant numbers: numbers k such that sigma(k) > sigma(m) for all m < k.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =6a(5) =8a(6) =10a(7) =12a(8) =16a(9) =18a(10) =20a(11) =24a(12) =30a(13) =36a(14) =42a(15) =48a(16) =60a(17) =72a(18) =84a(19) =90a(20) =96a(21) =108a(22) =120a(23) =144a(24) =168a(25) =180a(26) =210a(27) =216a(28) =240a(29) =288