login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A142869 Number of permutation symbols of type .r(n) for hyperbolic archimedean tessellations of rank 2n. 0
2, 5, 8, 24, 52, 185, 2412, 2412, 10082 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

See Conway et al. for precise definition.

REFERENCES

J. H. Conway et al., The Symmetries of Things, Peters, 2008, p. 261.

LINKS

Table of n, a(n) for n=1..9.

CROSSREFS

Sequence in context: A088144 A100501 A291605 * A086825 A192476 A093365

Adjacent sequences:  A142866 A142867 A142868 * A142870 A142871 A142872

KEYWORD

nonn,more

AUTHOR

N. J. A. Sloane, Oct 03 2008

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
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 7 09:16 EDT 2020. Contains 336274 sequences. (Running on oeis4.)