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

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2, 2], [2, [2], [2], [2]], [4, [2], [2], [2]] 3/5 3, 8, 40 1, 1, 5 5
\(\downarrow\)
[2], [2, [2], [2], [2]], [3, [2], [2], [2]] 2/3 2, 8, 24 1, 1, 3 3
\(\downarrow\)
[2, [2], [2], [2]], [2, [2], [2], [2]] 1 8, 8 1, 1 1