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a(n) is the number of ways to tile a skew double-strip of n-2 cells using squares and all possible "dominos", as seen in the comments in A000078, but with the added provision that the first tile (in the lower left corner) must be a domino. For reference, here is the skew double-strip corresponding to a(10), n=14, with 12 cells:
a(n) is the number of ways to tile a skew double-strip of n+-2 cells using squares and all possible "dominos", as seen in the comments in A000078, but with the added provision that the first tile (in the lower left corner) must be a domino. For reference, here is the skew double-strip corresponding to a(1410), with n=12 cells:
a(n+3) is the number of ways to tile a skew double-strip of n +2 cells using squares and all possible "dominos", as seen in the comments in A000078, but with the added provision that the first tile (in the lower left corner) must be a domino. For reference, here is the skew double-strip corresponding to a(1514), with n=12 cells:
a(n+3) is the number of ways to tile a skew double-strip of n-2 cells using squares and all possible "dominos", as seen in the comments in A000078, but with the added provision that if the first tile (in the lower left corner) is must be a domino then it can be one of two colors. For reference, here is the skew double-strip corresponding to n=14, a(15), with n=12 cells:
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approved
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|___|, |___|, |_______|. - Greg Dresden, and Ruotong Li, Jun 05 2024
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