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
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.
Sequence in context: A103449 A030571 A297675 * A050180 A319422 A272173
Adjacent sequences: A112233 A112234 A112235 * A112237 A112238 A112239
Parthasarathy Nambi, Nov 28 2005