1,5
Table of n, a(n) for n=1..9.
Zoran Maksimovic, Number of graphs on n nodes whose automorphism group orders are k, n<=11
Eric Weisstein's World of Mathematics, Graph Automorphism
Sequence in context: A000623 A304941 A129369 * A027266 A242278 A129796
Adjacent sequences: A095850 A095851 A095852 * A095854 A095855 A095856
nonn,more
Eric W. Weisstein, Jun 09 2004
approved