Numbers k that divide 5^k - 3.

Terms

a(0) =1a(1) =2a(2) =22a(3) =77a(4) =242a(5) =371a(6) =16102a(7) =45727a(8) =73447a(9) =81286a(10) =112277a(11) =368237a(12) =10191797a(13) =13563742a(14) =30958697a(15) =389974222a(16) =6171655457a(17) =55606837682a(18) =401469524477a(19) =434715808966