User blog comment:Googleaarex/Pair sequence number analysis/@comment-27516045-20170725134920/@comment-3427444-20170727085240

Kyodaisuu's blog post provides (0,0)(1,1)(2,0)(1,1)(2,1)(3,1) as an example of a sequence that expands differently with BM1 and BM2. However, I don't know if that sequnce can result from expanding (0,0,0)(1,1,1).