Right-truncatable Harshad numbers (zeros not permitted).

Terms

a(0) =1a(1) =2a(2) =3a(3) =4a(4) =5a(5) =6a(6) =7a(7) =8a(8) =9a(9) =12a(10) =18a(11) =21a(12) =24a(13) =27a(14) =36a(15) =42a(16) =45a(17) =48a(18) =54a(19) =63a(20) =72a(21) =81a(22) =84a(23) =126a(24) =216a(25) =243a(26) =247a(27) =364a(28) =423a(29) =481