Numbers with a record number of deficient divisors.

Terms

a(0) =1a(1) =2a(2) =4a(3) =8a(4) =16a(5) =30a(6) =60a(7) =90a(8) =150a(9) =210a(10) =315a(11) =630a(12) =990a(13) =1575a(14) =1890a(15) =2310a(16) =3465a(17) =4620a(18) =6930a(19) =11550a(20) =13860a(21) =17325a(22) =20790a(23) =30030a(24) =39270a(25) =45045a(26) =60060a(27) =78540a(28) =90090a(29) =117810