A044309 Numbers n such that string 6,4 occurs in the base 9 representation of n but not of n-1.

58, 139, 220, 301, 382, 463, 522, 544, 625, 706, 787, 868, 949, 1030, 1111, 1192, 1251, 1273, 1354, 1435, 1516, 1597, 1678, 1759, 1840, 1921, 1980, 2002, 2083, 2164, 2245, 2326, 2407, 2488, 2569, 2650, 2709, 2731, 2812