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A007867 Complementary pairs of `homogenized' N-free graphs with n nodes. 0
1, 1, 2, 7, 22, 82, 307 (list; graph; refs; listen; history; internal format)
OFFSET

1,3

REFERENCES

J. Covington, Proc. London Math. Soc., vol. ?, page ?, year ?

CROSSREFS

Sequence in context: A110137 A097967 A052879 * A014558 A150322 A150323

Adjacent sequences:  A007864 A007865 A007866 * A007868 A007869 A007870

KEYWORD

nonn

AUTHOR

Peter Cameron [ P.J.Cameron(AT)qmw.ac.uk ]

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Last modified February 17 16:49 EST 2012. Contains 206058 sequences.