Numbers k such that phi(k) | sigma(k + 6).

Terms

a(0) =1a(1) =2a(2) =4a(3) =5a(4) =6a(5) =8a(6) =9a(7) =14a(8) =15a(9) =18a(10) =24a(11) =36a(12) =45a(13) =50a(14) =56a(15) =60a(16) =72a(17) =86a(18) =98a(19) =114a(20) =148a(21) =180a(22) =204a(23) =260a(24) =264a(25) =304a(26) =315a(27) =324a(28) =370a(29) =372