A044293 Numbers n such that string 4,6 occurs in the base 9 representation of n but not of n-1.

42, 123, 204, 285, 366, 378, 447, 528, 609, 690, 771, 852, 933, 1014, 1095, 1107, 1176, 1257, 1338, 1419, 1500, 1581, 1662, 1743, 1824, 1836, 1905, 1986, 2067, 2148, 2229, 2310, 2391, 2472, 2553, 2565, 2634, 2715, 2796