Numerator of Sum_{1<=k<=n, gcd(k,n)=1} 1/k.

Terms

a(0) =1a(1) =1a(2) =3a(3) =4a(4) =25a(5) =6a(6) =49a(7) =176a(8) =621a(9) =100a(10) =7381a(11) =552a(12) =86021a(13) =11662a(14) =18075a(15) =91072a(16) =2436559a(17) =133542a(18) =14274301a(19) =5431600a(20) =9484587a(21) =2764366a(22) =19093197a(23) =61931424a(24) =399698125a(25) =281538452a(26) =8770427199a(27) =1513702904a(28) =315404588903a(29) =323507400