\input zb-basic
\input zb-ioport
\iteman{io-port 03933126}
\itemau{Farrell, E.J.; Wahid, S.A.}
\itemti{Matchings in long benzene chains.}
\itemso{Match 18, 37-48 (1985).}
\itemab
An explicit recurrence relation is derived for the matching polynomial of the long hexagonal (benzene) chain. From this several formulae are derived for the number of various kinds of matchings in the chain.
\itemrv{~}
\itemcc{}
\itemut{recurrence relation; matching polynomial}
\itemli{}
\end