login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Please make a donation (tax deductible in USA) to keep the OEIS running. Over 5000 articles have referenced us, often saying "we discovered this result with the help of the OEIS".

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A193128 Numbers of spanning trees of the Apollonian graphs. 0
16, 1445, 487350000, 6820689973308563232421875, 5721266536171567118387561969710675136013833252945914864540100097656250000 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

LINKS

Table of n, a(n) for n=1..5.

Eric Weisstein's World of Mathematics, Apollonian Network

Eric Weisstein's World of Mathematics, Spanning Tree

CROSSREFS

Sequence in context: A160251 A106176 A263975 * A223101 A086815 A180504

Adjacent sequences:  A193125 A193126 A193127 * A193129 A193130 A193131

KEYWORD

nonn

AUTHOR

Eric W. Weisstein, Jul 16 2011

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy .

Last modified December 4 19:31 EST 2016. Contains 278755 sequences.