2,1

J. H. Conway, R. T. Curtis, S. P. Norton, R. A. Parker and R. A. Wilson, ATLAS of Finite Groups. Oxford Univ. Press, 1985, p. xvi.

H. S. M. Coxeter and W. O. J. Moser, Generators and Relations for Discrete Groups, 4th ed., Springer-Verlag, NY, reprinted 1984, p. 131.

Sequence in context: A095456 A104319 A003943 this_sequence A120318 A095458 A083104

Adjacent sequences: A003933 A003934 A003935 this_sequence A003937 A003938 A003939

nonn,easy,bref

N. J. A. Sloane (njas(AT)research.att.com).