A043247 Numbers n such that 4 and 6 occur juxtaposed in the base 10 representation of n but not of n-1.

46, 64, 146, 164, 246, 264, 346, 364, 446, 460, 546, 564, 640, 664, 746, 764, 846, 864, 946, 964, 1046, 1064, 1146, 1164, 1246, 1264, 1346, 1364, 1446, 1460, 1546, 1564, 1640, 1664, 1746, 1764, 1846, 1864, 1946, 1964, 2046