A043878 Numbers n such that 0 and 2 occur juxtaposed in the base 3 representation of n but not of n+1.

6, 11, 15, 20, 24, 29, 35, 38, 42, 47, 51, 62, 65, 69, 74, 78, 83, 89, 92, 96, 107, 110, 116, 119, 123, 128, 132, 143, 146, 150, 155, 159, 188, 191, 197, 200, 204, 209, 213, 224, 227, 231, 236, 240, 245, 251, 254, 258, 269, 272, 278