Numbers k such that k^2 divides 14^k + 1.

Terms

a(0) =1a(1) =3a(2) =5a(3) =15a(4) =183a(5) =355a(6) =505a(7) =915a(8) =1065a(9) =1515a(10) =12165a(11) =35855a(12) =64965a(13) =92415a(14) =107565a(15) =134139a(16) =201995a(17) =605985a(18) =670695a(19) =742065a(20) =863715a(21) =1228665a(22) =1674633a(23) =1675365a(24) =2269515a(25) =6561465a(26) =8373165a(27) =9074865a(28) =13772865a(29) =16521423