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

Terms

a(0) =15a(1) =21a(2) =46a(3) =69a(4) =88a(5) =94a(6) =115a(7) =119a(8) =189a(9) =204a(10) =209a(11) =210a(12) =213a(13) =255a(14) =297a(15) =329a(16) =332a(17) =399a(18) =418a(19) =465a(20) =470a(21) =589a(22) =598a(23) =609a(24) =616a(25) =663a(26) =696a(27) =749a(28) =799a(29) =869