Smallest multiple of n using only digits 0 and 3.

Terms

a(0) =3a(1) =30a(2) =3a(3) =300a(4) =30a(5) =30a(6) =3003a(7) =3000a(8) =333a(9) =30a(10) =33a(11) =300a(12) =3003a(13) =30030a(14) =30a(15) =30000a(16) =33303a(17) =3330a(18) =33003a(19) =300a(20) =3003a(21) =330a(22) =330303a(23) =3000a(24) =300a(25) =30030a(26) =333333333a(27) =300300a(28) =3303303a(29) =30