Multiples of 7 in which there is no common digit in successive terms.

Terms

a(0) =7a(1) =14a(2) =28a(3) =35a(4) =42a(5) =56a(6) =70a(7) =84a(8) =91a(9) =203a(10) =441a(11) =525a(12) =609a(13) =714a(14) =805a(15) =917a(16) =2002a(17) =3115a(18) =4004a(19) =5117a(20) =6006a(21) =7112a(22) =8008a(23) =9114a(24) =20006a(25) =31115a(26) =40026a(27) =51135a(28) =60004a(29) =71113