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A171690 Number of parameter sequences of length n for which a certain 2-factor contains a Hamiltonian cycle (see reference for precise definition). 1
1, 1, 2, 6, 44, 614, 0 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

COMMENTS

The next term is at least 100.

REFERENCES

T. Mütze and F. Weber, Construction of 2-factors in the middle layer of the discrete cube, Journal of Combinatorial Theory, Series A, 119(8) (2012), 1832-1855.

LINKS

Table of n, a(n) for n=1..7.

Torsten Mütze and Franziska Weber, Construction of 2-factors in the middle layer of the discrete cube, arXiv preprint arXiv:1111.2413, 2011

CROSSREFS

Cf. A202302.

Sequence in context: A120594 A038180 A058925 * A219337 A229836 A136557

Adjacent sequences:  A171687 A171688 A171689 * A171691 A171692 A171693

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Jan 12 2012

STATUS

approved

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Last modified April 18 18:49 EDT 2014. Contains 240732 sequences.