Smallest number with reciprocal of period length n in decimal (base 10).

Terms

a(0) =1a(1) =3a(2) =11a(3) =27a(4) =101a(5) =41a(6) =7a(7) =239a(8) =73a(9) =81a(10) =451a(11) =21649a(12) =707a(13) =53a(14) =2629a(15) =31a(16) =17a(17) =2071723a(18) =19a(20) =3541a(21) =43a(22) =23a(24) =511a(25) =21401a(26) =583a(27) =243a(28) =29a(29) =3191a(30) =211a(31) =2791