Semilength of a Dyck path
= Semilength of a Dyck path
{title2=$n$}
Half the number of steps in a <Dyck path>. A <Dyck path> with <semilength of a Dyck path> $n$ has $2n$ steps and $n$ up/down pairs; the empty <Dyck path> has $n=0$.
= Semilength of a Dyck path
{title2=$n$}
Half the number of steps in a <Dyck path>. A <Dyck path> with <semilength of a Dyck path> $n$ has $2n$ steps and $n$ up/down pairs; the empty <Dyck path> has $n=0$.