Integers of the form Sum_{i=1..m} phi(i)/gcd(m,i).

Terms

a(0) =1a(1) =4a(2) =20a(3) =58a(4) =178a(5) =248a(6) =880a(7) =965a(8) =2289a(9) =2664a(10) =4096a(11) =3233a(12) =7254a(13) =15447a(14) =30658a(15) =35869a(16) =49485a(17) =102248a(18) =116225a(19) =272130a(20) =247872a(21) =322891a(22) =407484a(23) =521003a(24) =444794a(25) =929334a(26) =1022620a(27) =1653250a(28) =1792704a(29) =1859231