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!)
A121187 Alkane systems (see Cyvin reference for precise definition). 0
1, 4, 22, 126, 686, 3640, 19470, 103889, 558389, 3019000, 16443467 (list; graph; refs; listen; history; text; internal format)
OFFSET

4,2

LINKS

Table of n, a(n) for n=4..14.

S. J. Cyvin, B. N. Cyvin, J. Brunvoll, J. Wang, Enumeration of staggered conformers of alkanes and monocyclic cycloalkanes, J. Molec. Struct., 445 (1998), 127-137.

S. J. Cyvin, Jianji Wang, J. Brunvoll, Shiming Cao, Ying Li, B. N. Cyvin, and Yugang Wang, Staggered conformers of alkanes: complete solution of the enumeration problem, J. Molec. Struct. 413-414 (1997), 227-239.

CROSSREFS

Sequence in context: A136777 A056625 A116428 * A011789 A047039 A100525

Adjacent sequences:  A121184 A121185 A121186 * A121188 A121189 A121190

KEYWORD

nonn

AUTHOR

N. J. A. Sloane, Aug 17 2006

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 1 01:56 EDT 2021. Contains 346377 sequences. (Running on oeis4.)