Numbers k such that k | sigma_13(k) - phi(k)^13.

Terms

a(0) =1a(1) =2a(2) =12a(3) =34a(4) =42a(5) =90a(6) =170a(7) =198a(8) =402a(9) =434a(10) =456a(11) =482a(12) =494a(13) =2046a(14) =4086a(15) =4518a(16) =7520a(17) =7605a(18) =8622a(19) =9632a(20) =10924a(21) =28280a(22) =51570a(23) =51714a(24) =74124a(25) =77724a(26) =100172a(27) =139653a(28) =143136a(29) =176760