
REFERENCES

F. Harary and R. W. Robinson, Exposition of the enumeration of pointlinesigned graphs, pp. 19  33 of Proc. Second Caribbean Conference Combinatorics and Computing (Bridgetown, 1977). Ed. R. C. Read and C. C. Cadogan. University of the West Indies, Cave Hill Campus, Barbados, 1977. vii+223 pp.
Harary, Frank; Palmer, Edgar M.; Robinson, Robert W.; Schwenk, Allen J.; Enumeration of graphs with signed points and lines. J. Graph Theory 1 (1977), no. 4, 295308.
R. W. Robinson, personal communication.
R. W. Robinson, Numerical implementation of graph counting algorithms, AGRC Grant, Math. Dept., Univ. Newcastle, Australia, 1976.
N. J. A. Sloane and Simon Plouffe, The Encyclopedia of Integer Sequences, Academic Press, 1995 (includes this sequence).


LINKS

R. W. Robinson, Table of n, a(n) for n = 1..22
J. Cummings, D. Kral, F. Pfender, K. Sperfeld et al., Monochromatic triangles in threecoloured graphs, Arxiv preprint arXiv:1206.1987. 2012.  From N. J. A. Sloane, Nov 25 2012
Harald Fripertinger, The cycle type of the induced action on 2subsets
Vladeta Jovovic, Formulae for the number T(n,k) of nmultigraphs on k nodes
