Figure 6.

Two-mismatch subsequences of s when s is a code word. Dark-gray nodes are 2-mismatches whose Hamming distance from s is 2. Each belongs to an equivalence class that has other two 2-mismatche subsequences.

Takenaka et al. BMC Genomics 2011 12(Suppl 3):S8   doi:10.1186/1471-2164-12-S3-S8