A142871 - OEIS

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A142871

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

1, 6, 2, 9, 6, 24, 20, 76, 76, 272, 312, 1100, 1384, 4684, 6512, 23280, 32400, 118272 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,2`
	COMMENTS	`See Conway et al. for precise definition.`
	REFERENCES	`J. H. Conway et al., The Symmetries of Things, Peters, 2008, p. 261.`
	CROSSREFS	`One bisection appears to coincide with A000898. For the other see A142877.` `Sequence in context: A153633 A118388 A195491 * A195411 A050235 A018801` `Adjacent sequences: A142868 A142869 A142870 * A142872 A142873 A142874`
	KEYWORD	`nonn,more`
	AUTHOR	`N. J. A. Sloane (njas(AT)research.att.com), Oct 03 2008`

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Last modified February 15 14:02 EST 2012. Contains 205811 sequences.