Bi-unitary superabundant numbers: numbers n such that bsigma(n)/n > bsigma(m)/m for all m < n, where bsigma is the sum of the bi-unitary divisors function (A188999).
A292984
Bi-unitary superabundant numbers: numbers n such that bsigma(n)/n > bsigma(m)/m for all m < n, where bsigma is the sum of the bi-unitary divisors function (A188999).
Terms
- a(0) =1a(1) =2a(2) =6a(3) =24a(4) =96a(5) =120a(6) =480a(7) =840a(8) =3360a(9) =7560a(10) =30240a(11) =83160a(12) =332640a(13) =1081080a(14) =4324320a(15) =17297280a(16) =69189120a(17) =73513440a(18) =294053760a(19) =1176215040a(20) =1396755360a(21) =5587021440
External references
- oeis: A292984