Numerator of Sum_{k=1..n} 1/lambda(k), where lambda(k) is the Carmichael's lambda function.

Terms

a(0) =1a(1) =2a(2) =5a(3) =3a(4) =13a(5) =15a(6) =47a(7) =53a(8) =55a(9) =29a(10) =74a(11) =163a(12) =331a(13) =341a(14) =89a(15) =371a(16) =1499a(17) =513a(18) =4657a(19) =4837a(20) =4957a(21) =5029a(22) =55679a(23) =59639a(24) =12007a(25) =12139a(26) =12227a(27) =12491a(28) =87833a(29) =90605