5,4
R. C. Read and R. J. Wilson, An Atlas of Graphs, Oxford, 1998.
Cf. A006820, A033301, A033483.
Sequence in context: A085767 A082127 A031354 this_sequence A122916 A132973 A107760
Adjacent sequences: A033697 A033698 A033699 this_sequence A033701 A033702 A033703
nonn,nice
R. C. Read (rcread(AT)math.uwaterloo.ca)
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