Harmonic anti-divisor numbers.

Terms

a(0) =5a(1) =8a(2) =41a(3) =56a(4) =588a(5) =946a(6) =972a(7) =1568a(8) =2692a(9) =5186a(10) =6874a(11) =8104a(12) =17386a(13) =27024a(14) =63584a(15) =84026a(16) =96896a(17) =167786a(18) =197416a(19) =2667584a(20) =4921776a(21) =5315554a(22) =27914146a(23) =30937248a(24) =124370356a(25) =505235234a(26) =3238952914a(27) =5079644880a(28) =6698880678a(29) =19672801456