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A355562
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Number of blunt polypons with n cells.
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3
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0, 1, 1, 2, 1, 5, 3, 10, 13, 31, 44, 103, 169, 360, 643, 1317, 2479, 5036, 9716, 19592, 38511, 77465, 153686, 309093, 617426, 1243392, 2496186, 5035612
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OFFSET
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1,4
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COMMENTS
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Polypons are defined in A057784. A blunt polypon is a polypon with no internal angle of 30 degrees.
Comments by Joseph Myers in A057784 regarding division of hexagons also apply to this sequence.
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LINKS
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CROSSREFS
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KEYWORD
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nonn,nice,hard,more
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AUTHOR
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STATUS
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approved
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