A044292 Numbers n such that string 4,5 occurs in the base 9 representation of n but not of n-1.

41, 122, 203, 284, 365, 369, 446, 527, 608, 689, 770, 851, 932, 1013, 1094, 1098, 1175, 1256, 1337, 1418, 1499, 1580, 1661, 1742, 1823, 1827, 1904, 1985, 2066, 2147, 2228, 2309, 2390, 2471, 2552, 2556, 2633, 2714, 2795