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: A102337 A096536 A104331 this_sequence A003843 A093047 A093046

Adjacent sequences: A003847 A003848 A003849 this_sequence A003851 A003852 A003853

nonn,easy

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