A044368 Numbers n such that string 3,6 occurs in the base 10 representation of n but not of n-1.

36, 136, 236, 336, 360, 436, 536, 636, 736, 836, 936, 1036, 1136, 1236, 1336, 1360, 1436, 1536, 1636, 1736, 1836, 1936, 2036, 2136, 2236, 2336, 2360, 2436, 2536, 2636, 2736, 2836, 2936, 3036, 3136, 3236, 3336, 3360, 3436