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A058802
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Vertically decomposable lattices on n unlabeled nodes.
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0
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1, 1, 3, 8, 26, 96, 414, 2040, 11432, 72022, 503973, 3875329, 32429747, 292872455, 2834089224, 29209213572, 318979706486
(list; graph; refs; listen; history; internal format)
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OFFSET
| 3,3
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REFERENCES
| J. Heitzig and J. Reinhold, Counting finite lattices, Algebra Universalis, 48 (2002), 43-53.
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LINKS
| J. Heitzig and J. Reinhold, Counting finite lattices, preprint no. 298, Institut fuer Mathematik, Universitaet Hanover, Germany, 1999.
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CROSSREFS
| a(n) = A006966(n)-A058800(n).
Sequence in context: A148822 A124528 A006870 * A054097 A088590 A023637
Adjacent sequences: A058799 A058800 A058801 * A058803 A058804 A058805
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KEYWORD
| nonn,hard
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AUTHOR
| Christian G. Bower (bowerc(AT)usa.net), Dec 28 2000
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