OFFSET
1,2
REFERENCES
H. Ferguson and C. Ferguson, Eightfold way: the sculpture, pp. 133-173 in S. Levy, ed., The Eightfold Way, Cambridge, 1999. (Beware errors!)
PROG
(Magma) t1:=[0 : n in [1..7]]; G:=PSL(2, 7); for g in G do t1[Order(g)]:=t1[Order(g)]+1; end for; t1; // See A145437 for a much better program!
CROSSREFS
KEYWORD
nonn,fini,full
AUTHOR
N. J. A. Sloane, Apr 06 2009
STATUS
approved