1#############################################################################
2##
3#W  id4.z                  GAP library of id's             Hans Ulrich Besche
4##
5
6ID_GROUP_TREE.next[4]:=
7rec(
8  fp:= [ 1 ],
9  next:= [ rec(
10    fp:= [ 4 ],
11    next:= [ rec(
12      fp:= [ 2 ],
13      next:= [ rec(
14        fp:= [ 12, 13 ],
15        next:= [ 19, 20 ] ) ] ) ] ) ] );
16