Highly composite numbers k that remain highly composite when recursively divided by squarefree kernel.

A365900

Highly composite numbers k that remain highly composite when recursively divided by squarefree kernel.

Terms

    a(0) =1a(1) =2a(2) =4a(3) =6a(4) =12a(5) =24a(6) =36a(7) =60a(8) =120a(9) =180a(10) =360a(11) =720a(12) =840a(13) =1260a(14) =2520a(15) =5040a(16) =7560a(17) =25200a(18) =27720a(19) =55440a(20) =83160a(21) =277200a(22) =720720a(23) =1081080a(24) =3603600a(25) =10810800a(26) =21621600a(27) =61261200a(28) =183783600a(29) =367567200

External references