A142870 - OEIS

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A142870

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

1, 1, 1, 3, 4, 11, 16, 45, 64, 193, 276, 873, 1252, 4167, 6028, 20793, 30364, 108699 (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	`Bisections: A142872, A142876.` `Sequence in context: A127804 A027306 A026676 * A143680 A058569 A026753` `Adjacent sequences: A142867 A142868 A142869 * A142871 A142872 A142873`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 03 2008`

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Last modified February 14 09:18 EST 2012. Contains 205614 sequences.