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A060017 Number of n-feedback edge set obstructions. 0
2, 7, 27, 120, 642, 3767 (list; graph; refs; listen; history; internal format)
OFFSET

1,1

REFERENCES

M. J. Dinneen, K. Cattell and M. R. Fellows, Forbidden minors to graphs with small feedback sets, Discrete Math., 230 (2001), 215-252.

CROSSREFS

Sequence in context: A007166 A036783 A150645 * A058800 A077622 A137108

Adjacent sequences:  A060014 A060015 A060016 * A060018 A060019 A060020

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Mar 17 2001

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Last modified February 13 16:22 EST 2012. Contains 205522 sequences.