Numbers k such that phi(k + 12) | sigma(k).

Terms

a(0) =6a(1) =14a(2) =23a(3) =24a(4) =30a(5) =33a(6) =38a(7) =51a(8) =54a(9) =60a(10) =66a(11) =78a(12) =84a(13) =87a(14) =96a(15) =102a(16) =109a(17) =120a(18) =132a(19) =141a(20) =159a(21) =168a(22) =174a(23) =204a(24) =210a(25) =246a(26) =248a(27) =249a(28) =267a(29) =276