Numerator of Sum_{k=1..n} 1/tau(k), where tau(k) is the number of divisors function.

Terms

a(0) =1a(1) =3a(2) =2a(3) =7a(4) =17a(5) =37a(6) =43a(7) =23a(8) =25a(9) =53a(10) =59a(11) =61a(12) =67a(13) =35a(14) =73a(15) =377a(16) =407a(17) =139a(18) =149a(19) =457a(20) =118a(21) =487a(22) =517a(23) =1049a(24) =363a(25) =373a(26) =383a(27) =1169a(28) =1229a(29) =311