id:A162678 - OEIS Search Results

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Number of fixed strictly disconnected n-ominoes bounded (not necessarily tightly) by an n*n square

+0
1

0, 2, 42, 937, 26427, 937126, 40290848, 2036152559, 118202398712, 7747410863508, 565695467280668, 45525704815211707, 4002930269942820774, 381750656962679848234, 39244733577786597223238 (list; graph; listen)

	OFFSET	`1,2`
	COMMENT	`a(n) = A162676(n) - A001168(n)`
	EXAMPLE	`a(2)=2: the two rotations of the disconnected domino consisting of two squares connected at a vertex`
	CROSSREFS	`Cf. A162676, A001168, A006770, A030222` `Sequence in context: A157056 A140170 A038396 this_sequence A124103 A152286 A039622` `Adjacent sequences: A162675 A162676 A162677 this_sequence A162679 A162680 A162681`
	KEYWORD	`nonn`
	AUTHOR	`David Bevan (dbevan(AT)emtex.com), Jul 28 2009`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

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