Bases in which 5 is a unique-period prime.

Terms

a(0) =2a(1) =3a(2) =4a(3) =6a(4) =7a(5) =9a(6) =19a(7) =24a(8) =26a(9) =39a(10) =49a(11) =79a(12) =99a(13) =124a(14) =126a(15) =159a(16) =199a(17) =249a(18) =319a(19) =399a(20) =499a(21) =624a(22) =626a(23) =639a(24) =799a(25) =999a(26) =1249a(27) =1279a(28) =1599a(29) =1999