Cascade for [2], [2, 2, 2], [2, 12, 4]

Singularity types \(K^2\) Orders of local
fundamental groups
Local indices Index
[2], [2, 12, 4], [2, 2, 2] 64/5 2, 90, 4 1, 15, 1 15
\(\downarrow\)
[2], [2, 12, 3], [2, 2] 864/67 2, 67, 3 1, 67, 1 67
\(\downarrow\)
[2], [2, 12, 2], [2] 144/11 2, 44, 2 1, 11, 1 11