Cascade for [2], [2, 2, 2], [2, 2, 2, 3, 2, 4, 2]

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2], [2, 2, 2], [2, 2, 2, 3, 2, 4, 2] 2/5 2, 4, 80 1, 1, 5 5
\(\downarrow\)
[2, 2, 2], [2, 2, 2, 2, 2, 4, 2] 1/2 4, 32 1, 8 8
\(\downarrow\)
[2, 2, 2], [2, 2, 2], [2, 4, 2] 4/3 4, 4, 12 1, 1, 3 3
\(\downarrow\)
[2, 2], [2, 2, 2], [2, 3, 2] 3/2 3, 4, 8 1, 1, 4 4
\(\downarrow\)
[2], [2, 2, 2], [2, 2, 2] 2 2, 4, 4 1, 1, 1 1