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A020880 Number of strong elementary edge-subgraphs in Moebius ladder M_n. 0
6, 21, 26, 81 (list; graph; refs; listen; history; internal format)
OFFSET

2,1

REFERENCES

J. P. McSorley, Counting structures in the Moebius ladder, Discrete Math., 184 (1998), 137-164.

CROSSREFS

Sequence in context: A102993 A143416 A164698 * A046467 A132184 A143322

Adjacent sequences:  A020877 A020878 A020879 * A020881 A020882 A020883

KEYWORD

nonn,easy,more

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com).

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Last modified February 15 23:53 EST 2012. Contains 205860 sequences.