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

1,1

LINKS

Table of n, a(n) for n=1..6.

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 * A211475 A213226 A058800

Adjacent sequences:  A060014 A060015 A060016 * A060018 A060019 A060020

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Mar 17 2001

STATUS

approved

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Last modified March 20 07:27 EDT 2019. Contains 321345 sequences. (Running on oeis4.)