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A374947
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a(n) is the number of suitably connected Legendrian n-Mosaics.
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7
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OFFSET
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1,2
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COMMENTS
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A Legendrian n-mosaic is an n X n array of the 10 tiles given in Figure 5 of Pezzimenti and Pandey. These tiles represent part of a Legendrian curve in the front projection.
A Legendrian n-mosaic is suitably connected if the connection points of each tile coincide with those of the contiguous tiles. Note that the n-mosaic consisting of all blank tiles are considered as suitably connected although it is not representing a link.
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LINKS
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EXAMPLE
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For n = 2 there are exactly a(2) = 2 suitably connected Legendrian 2-mosaics, namely the empty mosaic and the Legendrian unknot with maximal Thurston-Bennequin invariant.
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PROG
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(Rust) // See Margaret Kipe link
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CROSSREFS
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KEYWORD
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nonn,hard,more,new
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AUTHOR
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STATUS
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approved
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