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A292852
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Spherical congruence-uniform lattices on n unlabeled nodes
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1
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1, 1, 0, 1, 1, 2, 3, 8, 17, 45, 123, 367, 1148, 3792
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OFFSET
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1,6
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COMMENTS
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A lattice is congruence-uniform if it can be constructed from the singleton-lattice by a sequence of interval doublings. A lattice is spherical if its Möbius function between least and greatest element equals 1 or -1.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,more
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AUTHOR
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EXTENSIONS
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STATUS
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approved
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