Cascade for [2, 2, 4], [2, 2, 2, 2, 2, 2, 3], [2, 2, 2, 7]

Singularity types \(K^2\) Orders of local
fundamental groups		 Local indices Index
[2, 2, 4], [2, 2, 2, 7], [2, 2, 2, 2, 2, 2, 3] 2/3 10, 25, 15 5, 5, 15 15
\(\downarrow\)
[2, 2, 3], [2, 2, 7], [2, 2, 2, 2, 2, 2, 3] 1681/1995 7, 19, 15 7, 19, 15 1995
\(\downarrow\)
[2, 2, 2], [2, 7], [2, 2, 2, 2, 2, 2, 3] 256/195 4, 13, 15 1, 13, 15 195
\(\downarrow\)
[2, 2, 2], [2, 6], [2, 2, 2, 2, 2, 3] 196/143 4, 11, 13 1, 11, 13 143
\(\downarrow\)
[2, 2, 2], [2, 5], [2, 2, 2, 2, 3] 16/11 4, 9, 11 1, 3, 11 33
\(\downarrow\)
[2, 2, 2], [2, 4], [2, 2, 2, 3] 100/63 4, 7, 9 1, 7, 9 63
\(\downarrow\)
[2, 2, 2], [2, 3], [2, 2, 3] 64/35 4, 5, 7 1, 5, 7 35
\(\downarrow\)
[2, 2, 2], [2, 2], [2, 3] 12/5 4, 3, 5 1, 1, 5 5
\(\downarrow\)
[2, 2], [2, 2], [2, 2] 3 3, 3, 3 1, 1, 1 1