A044338 Numbers n such that string 0,6 occurs in the base 10 representation of n but not of n-1.

106, 206, 306, 406, 506, 606, 706, 806, 906, 1006, 1060, 1106, 1206, 1306, 1406, 1506, 1606, 1706, 1806, 1906, 2006, 2060, 2106, 2206, 2306, 2406, 2506, 2606, 2706, 2806, 2906, 3006, 3060, 3106, 3206, 3306, 3406, 3506