id:A006770 - OEIS Search Results

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Number of fixed n-celled polyominoes which need only touch at corners.
(Formerly M3565)

+0
2

1, 4, 20, 110, 638, 3832, 23592, 147941, 940982, 6053180, 39299408, 257105146, 1692931066, 11208974860, 74570549714, 498174818986, 3340366308393 (list; graph; listen)

	OFFSET	`1,2`
	REFERENCES	`D. H. Redelmeier, personal communication.`
	LINKS	`Eric Weisstein's World of Mathematics, Link to a section of The World of Mathematics.`
	CROSSREFS	`Adjacent sequences: A006767 A006768 A006769 this_sequence A006771 A006772 A006773` `Sequence in context: A020084 A026127 A153295 this_sequence A158827 A026156 A025183`
	KEYWORD	`nonn,hard`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com).`
	EXTENSIONS	`One more term from Joseph Myers (jsm(AT)polyomino.org.uk), Sep 26 2002`

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Last modified July 4 09:27 EDT 2009. Contains 160562 sequences.

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