Cascade for [2], [2, 2, 2], [2, 6, 4]

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2], [2, 6, 4], [2, 2, 2] 48/7 2, 42, 4 1, 7, 1 7
\(\downarrow\)
[2], [2, 6, 3], [2, 2] 216/31 2, 31, 3 1, 31, 1 31
\(\downarrow\)
[2], [2, 6, 2], [2] 36/5 2, 20, 2 1, 5, 1 5