Numerators of the partial sums of the reciprocals of the powerfree part function (A055231).

Terms

a(0) =1a(1) =3a(2) =11a(3) =17a(4) =91a(5) =16a(6) =117a(7) =152a(8) =187a(9) =381a(10) =4261a(11) =13553a(12) =178499a(13) =90322a(14) =30441a(15) =35446a(16) =607587a(17) =1300259a(18) =24875091a(19) =25521737a(20) =77027101a(21) =38733998a(22) =895731799a(23) =932913944a(24) =1044460379a(25) =2097501253a(26) =2320594123a(27) =2352464533a(28) =68444564327a(29) =11443370128