Cascade for [4], [2, 2, 2, 7]

Singularity types \(K^2\) Orders of local
fundamental groups		 Local indices Index
[4], [2, 2, 2, 7] 9 4, 25 2, 5 10
\(\downarrow\)
[3], [2, 2, 7] 529/57 3, 19 3, 19 57
\(\downarrow\)
[2], [2, 7] 128/13 2, 13 1, 13 13