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A071092
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Moments of inertia of a certain configuration of hexagons.
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0
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OFFSET
| 1,2
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REFERENCES
| J. Propp, Enumeration of matchings: problems and progress, pp. 255-291 in L. J. Billera et al., eds, New Perspectives in Algebraic Combinatorics, Cambridge, 1999 (see Problem 6).
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LINKS
| J. Propp, Updated article
J. Propp, Enumeration of matchings: problems and progress, in L. J. Billera et al. (eds.), New Perspectives in Algebraic Combinatorics
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CROSSREFS
| Sequence in context: A172200 A177291 A169711 * A144359 A124948 A126407
Adjacent sequences: A071089 A071090 A071091 * A071093 A071094 A071095
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KEYWORD
| nonn
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AUTHOR
| N. J. A. Sloane (njas(AT)research.att.com), May 28 2002
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