Cascade for [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, 3, 2, 4, 2] 12/5 3, 80 1, 5 5
\(\downarrow\)
[2], [2, 2], [2, 3, 2, 4, 2] 75/23 2, 3, 46 1, 1, 23 23
\(\downarrow\)
[2], [2], [2, 3, 2, 3, 2] 10/3 2, 2, 30 1, 1, 3 3
\(\downarrow\)
[2], [2, 2, 2, 3, 2] 25/7 2, 14 1, 7 7
\(\downarrow\)
[2], [2], [2, 3, 2] 9/2 2, 2, 8 1, 1, 4 4