Numbers n such that sigma(n)/phi(n) = 25/9, where sigma = A000203, phi = A000010.

Terms

a(0) =8721a(1) =10179a(2) =21489a(3) =99813a(4) =203721a(5) =228417a(6) =229653a(7) =250705a(8) =268047a(9) =609957a(10) =1150713a(11) =1343277a(12) =2429283a(13) =2835417a(14) =2835807a(15) =2881197a(16) =3150333a(17) =3230469a(18) =3833181a(19) =4679157a(20) =4885569a(21) =5673291a(22) =6082527a(23) =6302529a(24) =6713637a(25) =6819879a(26) =7096329a(27) =9464121a(28) =10313979a(29) =12168651