Numerator of sum of reciprocals of numbers less than n that do not divide n.

Terms

a(0) =0a(1) =0a(2) =1a(3) =1a(4) =13a(5) =9a(6) =29a(7) =59a(8) =1163a(9) =569a(10) =4861a(11) =21341a(12) =58301a(13) =79139a(14) =619181a(15) =260041a(16) =1715839a(17) =1808487a(18) =10190221a(19) =116220883a(20) =32925391a(21) =966183a(22) =13920029a(23) =455451475a(24) =4597423223a(25) =1536962359a(26) =64517796001a(27) =154777722503a(28) =235091155703