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

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A121076 Nonisomorphic catacondensed monoheptabenzenoids (see reference for precise definition). 0
1, 1, 4, 13, 56, 231, 999, 4276, 18393 (list; graph; refs; listen; history; internal format)
OFFSET

0,3

REFERENCES

B. N. Cyvin et al., A class of polygonal systems representing polycyclic conjugated hydrocarbons ..., Monat. f. Chemie, 125 (1994), 1327-1337.

CROSSREFS

Sequence in context: A149474 A149475 A149476 * A121070 A163070 A159595

Adjacent sequences:  A121073 A121074 A121075 * A121077 A121078 A121079

KEYWORD

nonn

AUTHOR

N. J. A. Sloane (njas(AT)research.att.com), Aug 11 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 16 10:43 EST 2012. Contains 205904 sequences.