GAP 4.8.9 installation with standard packages -- copy to your CoCalc project to get it
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##
#W id126.z GAP library of id's Hans Ulrich Besche
##
ID_GROUP_TREE.next[126]:=
rec(
fp:= [ 8844, 26844, 62945, 64579, 66085, 66505, 66859, 70705, 72485,
80545 ],
next:= [ 14, 5, rec(
fp:= [ 19945, 53472, 75815 ],
level:= 4,
next:= [ 10, 11, 7 ] ), 15, 16, 12, 6, 3, rec(
fp:= [ 12195, 18713, 55689 ],
level:= 4,
next:= [ 2, 1, 4 ] ), rec(
fp:= [ 75066, 91908, 97409 ],
level:= 4,
next:= [ 13, 8, 9 ] ) ] );