Cascade for [2], [2, 2], [2, 2, 3]

Singularity types \(K^2\) Orders of local
fundamental groups		 Local indices Index
[2], [2, 2, 3], [2, 2] 24/7 2, 7, 3 1, 7, 1 7
\(\downarrow\)
[2], [2, 2, 2], [2] 4 2, 4, 2 1, 1, 1 1