Numbers k such that phi(k + 4) | sigma(k).

Terms

a(0) =5a(1) =6a(2) =10a(3) =14a(4) =22a(5) =24a(6) =34a(7) =35a(8) =38a(9) =58a(10) =66a(11) =70a(12) =82a(13) =95a(14) =110a(15) =118a(16) =120a(17) =140a(18) =142a(19) =143a(20) =191a(21) =202a(22) =214a(23) =224a(24) =228a(25) =230a(26) =255a(27) =274a(28) =276a(29) =298