A044415 Numbers n such that string 8,3 occurs in the base 10 representation of n but not of n-1.

83, 183, 283, 383, 483, 583, 683, 783, 830, 883, 983, 1083, 1183, 1283, 1383, 1483, 1583, 1683, 1783, 1830, 1883, 1983, 2083, 2183, 2283, 2383, 2483, 2583, 2683, 2783, 2830, 2883, 2983, 3083, 3183, 3283, 3383, 3483, 3583