A044291 Numbers n such that string 4,4 occurs in the base 9 representation of n but not of n-1.

40, 121, 202, 283, 360, 445, 526, 607, 688, 769, 850, 931, 1012, 1089, 1174, 1255, 1336, 1417, 1498, 1579, 1660, 1741, 1818, 1903, 1984, 2065, 2146, 2227, 2308, 2389, 2470, 2547, 2632, 2713, 2794, 2875, 2956, 3037, 3118