1,2
M. A. Sainte-Lagu\"{e}, Les R\'{e}seaux (ou Graphes)}, M\'{e}morial des Sciences Math\'{e}matiques, Fasc. 18, Gauthier-Villars, Paris, 1926, p. 49.
Sequence in context: A091265 A028415 A035334 this_sequence A063703 A109619 A087228
Adjacent sequences: A002562 A002563 A002564 this_sequence A002566 A002567 A002568
nonn
njas
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