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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A122745 Numbers of polypentagons with one internal vertex (see Cyvin et al. for precise definition). 0
1, 1, 2, 5, 12, 29, 72, 170, 404, 944, 2184, 5000, 11368, 25616, 57376, 127696, 282688, 622656 (list; graph; refs; listen; history; internal format)
OFFSET

3,3

REFERENCES

S. J. Cyvin et al., Theory of polypentagons, J. Chem. Inf. Comput. Sci., 33 (1993), 466-474.

CROSSREFS

Sequence in context: A054196 A131710 A005593 * A166292 A010374 A025273

Adjacent sequences:  A122742 A122743 A122744 * A122746 A122747 A122748

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Sep 24 2006

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

Content is available under The OEIS End-User License Agreement .

Last modified February 14 02:39 EST 2012. Contains 205567 sequences.