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A123762
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Number of ways, counted up to symmetry, to build a contiguous building with n LEGO blocks of size 1x2.
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0
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1, 4, 37, 375, 4493, 56848, 753536, 10283622, 143607345, 2041497919, 29446248496, 429858432108
(list; graph; refs; listen; history; internal format)
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