A085632 - OEIS

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A085632

Number of connected coin graphs, also known as "penny" graphs.

1, 1, 2, 5, 13, 46, 162, 715 (list; graph; refs; listen; history; internal format)

	OFFSET	`1,3`
	COMMENTS	`The intersection graph of unit disks which are not allowed to overlap.`
	LINKS	`Erich Friedman, Illustration for A085632`
	CROSSREFS	`Cf. A085633.` `Sequence in context: A066740 A000719 A149875 * A111563 A079573 A194635` `Adjacent sequences: A085629 A085630 A085631 * A085633 A085634 A085635`
	KEYWORD	`more,nonn`
	AUTHOR	`Leah Hackman (lhackman(AT)cs.ualberta.ca), Martha Lednicky (lednicky(AT)cs.ualberta.ca), Jim Nastos (nastos(AT)gmail.com) and Rick Shepherd (rshepherd2(AT)hotmail.com), Jul 10 2003`

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Last modified February 13 18:33 EST 2012. Contains 205535 sequences.