Numbers k such that phi(k) | sigma(k + 10).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =7a(6) =12a(7) =13a(8) =14a(9) =20a(10) =28a(11) =29a(12) =32a(13) =36a(14) =44a(15) =45a(16) =52a(17) =53a(18) =56a(19) =60a(20) =66a(21) =77a(22) =84a(23) =86a(24) =104a(25) =105a(26) =108a(27) =110a(28) =123a(29) =130