/*
www-ATLAS of Group Representations.
L3(4) represented as permutations on 21 points.
*/

G<x,y>:=PermutationGroup<21|\[
2,1,3,6,7,4,5,12,14,15,17,8,19,9,10,16,11,18,13,20,21]
,\[
1,3,5,2,4,8,10,13,6,16,7,18,9,20,14,11,19,12,17,21,15]
>;
print "Group G is L3(4) < Sym(21)";