Successive digits of odd numbers.

Terms

a(0) =1a(1) =3a(2) =5a(3) =7a(4) =9a(5) =1a(6) =1a(7) =1a(8) =3a(9) =1a(10) =5a(11) =1a(12) =7a(13) =1a(14) =9a(15) =2a(16) =1a(17) =2a(18) =3a(19) =2a(20) =5a(21) =2a(22) =7a(23) =2a(24) =9a(25) =3a(26) =1a(27) =3a(28) =3a(29) =3