Numbers k such that phi(k) + 11 | sigma(k).

Terms

a(0) =8a(1) =25a(2) =34a(3) =50a(4) =304a(5) =432a(6) =1700a(7) =1968a(8) =2400a(9) =2656a(10) =13504a(11) =44736a(12) =59776a(13) =1025536a(14) =4148224a(15) =12512256a(16) =16685056a(17) =66924544a(18) =201043968a(19) =51535085568a(20) =68713578496