id:A057409 - OEIS Search Results

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Number of self-avoiding polygons of area n with any number of (self-avoiding polygon) holes on square lattice (not allowing rotations).

+0
1

1, 2, 6, 19, 63, 216, 756, 2685, 9650, 35018, 128084, 471623, 1746492, 6499356, 24290272, 91123171, 342984175, 1294829776, 4901319978, 18597856445, 70723784744, 269486503694, 1028736811230, 3933715966653 (list; graph; listen)

	OFFSET	`1,2`
	LINKS	`I. Jensen, Table of n, a(n) for n = 1..40 (from link below)` `I. Jensen, More terms`
	CROSSREFS	`Sequence in context: A059713 A109262 A006724 this_sequence A141771 A001170 A001168` `Adjacent sequences: A057406 A057407 A057408 this_sequence A057410 A057411 A057412`
	KEYWORD	`nonn`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Aug 30 2000`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

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