Numbers k such that sigma(k) == 0 (mod k-5).

Terms

a(0) =2a(1) =3a(2) =4a(3) =6a(4) =7a(5) =8a(6) =11a(7) =12a(8) =18a(9) =21a(10) =26a(11) =68a(12) =656a(13) =2336a(14) =8768a(15) =133376a(16) =528896a(17) =34360918016