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A363199
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Number of free tree-like polycubes of size n, identifying rotations but not reflections.
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1
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1, 1, 2, 7, 27, 138, 822, 5154, 33880, 227495, 1554266, 10749089, 75106906
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,3
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COMMENTS
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Tree-like means that the graph connecting midpoints of adjacent cubes is a tree.
Additionally identifying reflections gives A304196.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,hard,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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