In one embodiment, a method of video encoding is disclosed, the method comprising: encoding a position of a last non-zero coefficient within a video block having a first width, wherein the position of the last non-zero coefficient is provided as a string of binary values, wherein each binary value in said string corresponds to a bin index value; and determining a context index value for each bin index value, wherein the context index value for each bin index value is configured to be shared across two or more blocks of different widths.