Numerators of the partial sums of the reciprocals of the sum of bi-unitary divisors function (A188999).

A379615

Numerators of the partial sums of the reciprocals of the sum of bi-unitary divisors function (A188999).

Terms

    a(0) =1a(1) =4a(2) =19a(3) =107a(4) =39a(5) =61a(6) =259a(7) =89a(8) =93a(9) =857a(10) =887a(11) =181a(12) =1303a(13) =331a(14) =1345a(15) =4091a(16) =4175a(17) =21127a(18) =4301a(19) =21757a(20) =87973a(21) =88813a(22) =90073a(23) =90577a(24) =1192621a(25) =1201981a(26) =1211809a(27) =1221637a(28) =1234741a(29) =1240201

External references