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A006770
Number of fixed n-celled polyominoes which need only touch at corners.
(Formerly M3565)
+0
3
1, 4, 20, 110, 638, 3832, 23592, 147941, 940982, 6053180, 39299408, 257105146, 1692931066, 11208974860, 74570549714, 498174818986, 3340366308393
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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 9 14:43 EST 2009. Contains 170430 sequences.
AT&T Labs Research
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