A031497 n-th number k which in base 10 has one more 0's than 9's.

10, 20, 30, 40, 50, 60, 70, 80, 101, 102, 103, 104, 105, 106, 107, 108, 110, 120, 130, 140, 150, 160, 170, 180, 201, 202, 203, 204, 205, 206, 207, 208, 210, 220, 230, 240, 250, 260, 270, 280, 301, 302, 303, 304, 305, 306, 307