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A030222
Number of n-polyplets (polyominoes connected at edges or corners); may contain holes.
+0
7
1, 2, 5, 22, 94, 524, 3031, 18770, 118133, 758381, 4915652, 32149296, 211637205, 1401194463, 9321454604, 62272330564, 417546684096
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.
AT&T Labs Research
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