Numbers whose reciprocals have period 10.

Terms

a(0) =451a(1) =1353a(2) =2981a(3) =4059a(4) =8943a(5) =9091a(6) =26829a(7) =27273a(8) =81819a(9) =100001a(10) =122221a(11) =300003a(12) =366663a(13) =372731a(14) =900009a(15) =1099989a(16) =1118193a(17) =2463661a(18) =3354579a(19) =4100041a(20) =7390983a(21) =12300123a(22) =22172949a(23) =27100271a(24) =36900369a(25) =81300813a(26) =101010101a(27) =243902439a(28) =303030303a(29) =909090909