Numerator of Sum_{k=1..n} phi(k)/k.

Terms

a(0) =1a(1) =3a(2) =13a(3) =8a(4) =52a(5) =19a(6) =163a(7) =361a(8) =1223a(9) =1307a(10) =16477a(11) =5749a(12) =83977a(13) =88267a(14) =280817a(15) =147916a(16) =2754812a(17) =2839897a(18) =58552633a(19) =60492571a(20) =63263911a(21) =65468386a(22) =1612469468a(23) =549883871a(24) =579629587a(25) =596790577a(26) =1864736021a(27) =1912541636a(28) =58587007624a(29) =59449633388