a(n) is the least multiple of n that is not a Niven (or Harshad) number.

Terms

a(0) =11a(1) =14a(2) =15a(3) =16a(4) =15a(5) =66a(6) =14a(7) =16a(8) =99a(9) =130a(10) =11a(11) =96a(12) =13a(13) =14a(14) =15a(15) =16a(16) =17a(17) =2898a(18) =19a(19) =160a(20) =105a(21) =22a(22) =23a(23) =96a(24) =25a(25) =26a(26) =189a(27) =28a(28) =29a(29) =390