Cascade for [2], [2, 2], [2, 5, 3]

Singularity types \(K^2\) Orders of local
fundamental groups		 Local indices Index
[2], [2, 5, 3], [2, 2] 6 2, 25, 3 1, 5, 1 5
\(\downarrow\)
[2], [2, 5, 2], [2] 25/4 2, 16, 2 1, 8, 1 8