A142868 - OEIS

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A142868

Number of permutation symbols of type .a(n) for hyperbolic archimedean tesselations of rank 2n.

0, 0, 1, 3, 17, 74, 343, 1603, 7807 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,4`
	COMMENTS	`See Conway et al. for precise definition.`
	REFERENCES	`J. H. Conway et al., The Symmetries of Things, Peters, 2008, p. 261.`
	CROSSREFS	`Sequence in context: A049181 A179596 A191587 * A171875 A100233 A015525` `Adjacent sequences: A142865 A142866 A142867 * A142869 A142870 A142871`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 03 2008`

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Last modified February 15 21:02 EST 2012. Contains 205852 sequences.