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A128243 Number of n-node (unlabeled) connected graphs with girth 6. 9
0, 0, 0, 1, 1, 6, 16, 64 (list; graph; refs; listen; history; internal format)
OFFSET

3,6

CROSSREFS

Cf. A128041, A128042, A128236-A128242.

Sequence in context: A125628 A078672 A120795 * A118640 A142704 A083885

Adjacent sequences:  A128240 A128241 A128242 * A128244 A128245 A128246

KEYWORD

nonn

AUTHOR

Keith M. Briggs, May 05 2007

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Last modified February 15 03:33 EST 2012. Contains 205694 sequences.