Period of 1/n in sequence A033938.

Terms

a(0) =1a(1) =1a(2) =1a(3) =6a(4) =2a(5) =4a(6) =393a(7) =464a(8) =16161a(9) =18281a(10) =35253a(11) =24242a(12) =37373a(13) =26162a(14) =39393a(15) =63936a(16) =1606061a(17) =1609061a(18) =1626261a(19) =1628261a(20) =1629261a(21) =1636361a(22) =1809081a(23) =1835381a(24) =1849481a(25) =3507053a(26) =3518153a(27) =3548453a(28) =3717173a(29) =3718173