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A085633 Number of not necessarily connected coin graphs, also known as "penny" graphs. 1
1, 2, 4, 10, 25, 80, 267, 1078 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,2
COMMENTS
The intersection graph of unit disks which are not allowed to overlap.
LINKS
CROSSREFS
Cf. A085632.
Sequence in context: A006901 A123422 A123413 * A111564 A350507 A007021
KEYWORD
more,nonn
AUTHOR
Leah Hackman (lhackman(AT)cs.ualberta.ca), Martha Lednicky (lednicky(AT)cs.ualberta.ca), Jim Nastos and Rick L. Shepherd, Jul 10 2003
STATUS
approved

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Last modified March 29 11:14 EDT 2024. Contains 371278 sequences. (Running on oeis4.)