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A057729
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Number of triangular polyominoes (or polyiamonds) [A000577] with perimeter n.
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8
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0, 0, 1, 1, 1, 4, 5, 16, 37, 120, 345, 1181, 3844, 13429, 46736, 167172
(list;
graph;
refs;
listen;
history;
text;
internal format)
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OFFSET
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1,6
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REFERENCES
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a(10) found by Brendan Owen.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,nice,more
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AUTHOR
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EXTENSIONS
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a(12)-a(16) corrected and extended by John Mason, Jul 26 2021
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STATUS
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approved
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