a(n) is the least multiple of n that contains all digits 0-9 at least once.

Terms

a(0) =1234567890a(1) =1234567890a(2) =1234567890a(3) =1234567908a(4) =1234567890a(5) =1234567890a(6) =1234567908a(7) =1234570896a(8) =1234567890a(9) =1234567890a(10) =1234568709a(11) =1234567908a(12) =1234568790a(13) =1234567908a(14) =1234567890a(15) =1234570896a(16) =1234569087a(17) =1234567890a(18) =1234576908a(19) =1234567980a(20) =1234567908a(21) =1234570986a(22) =1234568079a(23) =1234570896