gnu(16875)=123
gnu(16875)=123

GAP 4.8.4
GrpConst 2.5
Runtime: 14874 ms (14 s)
Isomorphic groups eliminated

Submitted by @gnufinder. Replicated by @alex-konovalov on Ubuntu 16.04 on Azure cloud standard DS3 v2 instance (4 cores, 14 GB RAM)

Closes #139
alex-konovalov/gnu