Numbers n with the property that k*n and (k+1)*n have a common nonzero digit for all k.

Terms

a(0) =99a(1) =990a(2) =999a(3) =1998a(4) =2997a(5) =3996a(6) =3999a(7) =4992a(8) =4995a(9) =5994a(10) =6875a(11) =6993a(12) =6996a(13) =7992a(14) =8125a(15) =8704a(16) =8991a(17) =9856a(18) =9900a(19) =9984a(20) =9990a(21) =9999a(22) =10989a(23) =13299a(24) =19456a(25) =19899a(26) =19943a(27) =19980a(28) =19994a(29) =19995