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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; text; internal format)
OFFSET

2,1

LINKS

Table of n, a(n) for n=2..5.

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

CROSSREFS

Sequence in context: A273787 A229498 A164698 * A046467 A132184 A143322

Adjacent sequences:  A020877 A020878 A020879 * A020881 A020882 A020883

KEYWORD

nonn,easy,more

AUTHOR

N. J. A. Sloane

STATUS

approved

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Last modified January 18 04:47 EST 2019. Contains 319269 sequences. (Running on oeis4.)