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

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2], [2, 2], [2, 4, 2, 4, 2] 21/5 2, 3, 70 1, 1, 5 5
\(\downarrow\)
[2], [2], [2, 3, 2, 4, 2] 98/23 2, 2, 46 1, 1, 23 23
\(\downarrow\)
[2], [2, 2, 2, 4, 2] 49/11 2, 22 1, 11 11
\(\downarrow\)
[2], [2], [2, 4, 2] 16/3 2, 2, 12 1, 1, 3 3