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A339770
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Number of polyfetts (or polifetti) with n cells, distinguishing mirror images.
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0
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OFFSET
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1,2
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COMMENTS
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A polyfett [polifetto] is a generalized polyabolo [polytan]. It is formed by joining isosceles right triangles on the quadrille grid along edges and at corners.
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LINKS
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EXAMPLE
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For n=2 there are 4 diaboloes and 11 proper difetts, distinguishing mirror images. See the link.
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CROSSREFS
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Cf. A337867 (number of polyfetts with n cells, identifying mirror images).
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KEYWORD
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nonn,hard,more
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AUTHOR
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STATUS
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approved
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