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A094168
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Number of rooted 2-dimensional polyominoes with n heptagonal cells, with no symmetries removed.
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1
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1, 7, 42, 252, 1505, 8946, 53165, 315980, 1878597, 11171930, 66456082, 395399760, 2352979538, 14004512886
(list; graph; refs; listen; history; internal format)
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