3,1
R. C. Read, Some Enumeration Problems in Graph Theory. Ph.D. Dissertation, Department of Mathematics, Univ. London, 1958.
Adjacent sequences: A006711 A006712 A006713 this_sequence A006715 A006716 A006717
Sequence in context: A013434 A013436 A013437 this_sequence A015033 A126677 A054328
nonn
njas
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