
REFERENCES

H.U. Besche and B. Eick, Construction of Finite Groups, Journal of Symbolic Computation, Vol. 27, No. 4, Apr 15 1999, pp. 387404.
H.U. Besche and B. Eick, The Groups of Order at Most 1000 Except 512 and 768, Journal of Symbolic Computation, Vol. 27, No. 4, Apr 15 1999, pp. 405413.
Hans Ulrich Besche; Bettina Eick; E. A. O'Brien, The groups of order at most 2000, Electron. Res. Announc. Amer. Math. Soc. 7 (2001), 14.
Eick, Bettina; O'Brien, E. A.; Enumerating pgroups. Group theory. J. Austral. Math. Soc. Ser. A 67 (1999), no. 2, 191205.


LINKS

Table of n, a(n) for n=1..13.
H.U. Besche, The Small Groups library
J. H. Conway, Heiko Dietrich and E. A. O'Brien, Counting groups: gnus, moas and other exotica, The Mathematical Intelligencer, March 2008, Volume 30, Issue 2, pp 615.
Eric Weisstein's World of Mathematics, Finite Group.
Index entries for sequences related to enumerating groups.
