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A135380 Number of labeled non-planar 2-connected K_{3,3}-free toroidal irreducible graphs having n vertices. 1
1, 0, 420, 37520, 3656520, 454406400, 67651907400, 11713973686800, 2309360318565300, 509886615053415600, 124470953623133617500, 33253861507512510664800, 9642802738009988846098800 (list; graph; refs; listen; history; text; internal format)
OFFSET
5,3
REFERENCES
A. Gagarin, G. Labelle and P. Leroux, The structure of K_{3,3}-subdivision-free toroidal graphs, Discrete Math., 307 (2007), 2993-3005.
LINKS
CROSSREFS
Sequence in context: A107510 A023911 A135340 * A035846 A223941 A360537
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Dec 10 2007
STATUS
approved

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Last modified March 29 08:13 EDT 2024. Contains 371265 sequences. (Running on oeis4.)