Numbers n such that sigma(n) = 12*phi(n).

Terms

a(0) =210a(1) =1848a(2) =2970a(3) =3720a(4) =6270a(5) =26796a(6) =38340a(7) =53940a(8) =59340a(9) =60960a(10) =70686a(11) =78210a(12) =80940a(13) =88536a(14) =129540a(15) =142290a(16) =149226a(17) =155064a(18) =174174a(19) =237000a(20) =249210a(21) =300390a(22) =350610a(23) =385710a(24) =429408a(25) =526110a(26) =604128a(27) =624840a(28) =664608a(29) =827310