a(n) = smallest multiple of n which contains its base 10 reversal as a substring.

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =1010a(10) =11a(11) =216a(12) =312a(13) =1414a(14) =510a(15) =1616a(16) =714a(17) =810a(18) =912a(19) =1020a(20) =126a(21) =22a(22) =322a(23) =2424a(24) =525a(25) =624a(26) =729a(27) =1820a(28) =928a(29) =3030