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A092329 Number of nonisomorphic, constructed lattice-square designs of order n as n runs through the odd prime-powers (3, 5, 7, 9, 11, 13, ...). 0
1, 2, 4, 9, 31, 128 (list; graph; refs; listen; history; internal format)
OFFSET

3,2

COMMENTS

Equivalence classes of designs are challenging. Here the difficulty is reduced by focusing on constructed designs.

REFERENCES

W. Y.-C. Chen and D. C. Torney, Equivalence Classes of Matchings and Lattice-Square Designs, Discrete Applied Math, in press.

LINKS

William Y.-C. Chen and David C. Torney, Equivalence Classes of Matchings and Lattice-Square Designs, Discr. Appl. Math. vol. 145 no. 3 (2005) pp 349-357.

CROSSREFS

Sequence in context: A007876 A176068 A005095 * A053548 A054119 A151891

Adjacent sequences:  A092326 A092327 A092328 * A092330 A092331 A092332

KEYWORD

nonn,uned,obsc

AUTHOR

David C. Torney (dtorney(AT)earthlink.com), Mar 17 2004

EXTENSIONS

What does "constructed" mean? If, as I suspect, it means constructed as of Mar 17 2004, then this is a time-dependent sequence and does not belong in the OEIS. - N. J. A. Sloane (njas(AT)research.att.com), Mar 18 2004

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Last modified February 17 13:04 EST 2012. Contains 206022 sequences.