Largest squarefree number dividing the numerator of harmonic number H(n).

Terms

a(0) =1a(1) =3a(2) =11a(3) =5a(4) =137a(5) =7a(6) =33a(7) =761a(8) =7129a(9) =671a(10) =83711a(11) =6617a(12) =1145993a(13) =1171733a(14) =1195757a(15) =143327a(16) =42142223a(17) =751279a(18) =275295799a(19) =55835135a(20) =18858053a(21) =830139a(22) =444316699a(23) =1347822955a(24) =34052522467a(25) =34395742267a(26) =312536252003a(27) =10876020307a(28) =214582477009a(29) =300151059037