Smallest multiple of n using only digits 0 and 2.

Terms

a(0) =2a(1) =2a(2) =222a(3) =20a(4) =20a(5) =222a(6) =2002a(7) =200a(8) =222222222a(9) =20a(10) =22a(11) =2220a(12) =2002a(13) =2002a(14) =2220a(15) =2000a(16) =22202a(17) =222222222a(18) =22002a(19) =20a(20) =20202a(21) =22a(22) =220202a(23) =22200a(24) =200a(25) =2002a(26) =2202222222a(27) =20020a(28) =2202202a(29) =2220