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!)
A112236 Number of isomers of polychlorinated biphenyls. 0
1, 3, 12, 24, 42, 46, 42, 24, 12, 3, 1 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..10.

Author?, Polychlorinated biphenyls.

Paul Lee, Jay Lee, Pat Sammon and Ana Kasumovic PCB in the Environment

EXAMPLE

There are three isomers with just one chlorine atom in the two phenyl rings combined, so the second term is 3. There are 46 isomers with five chlorine atoms in the two phenyl rings combined.

CROSSREFS

Sequence in context: A103449 A030571 A297675 * A050180 A319422 A272173

Adjacent sequences:  A112233 A112234 A112235 * A112237 A112238 A112239

KEYWORD

fini,nonn

AUTHOR

Parthasarathy Nambi, Nov 28 2005

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 June 16 15:06 EDT 2021. Contains 345057 sequences. (Running on oeis4.)