Sequence term
= Sequence term
{title2=$a_k$}
A <sequence term> is an entry of a <sequence> at a specified <sequence index>. The <sequence index> distinguishes the position even when different entries have the same value.
= Sequence term
{title2=$a_k$}
A <sequence term> is an entry of a <sequence> at a specified <sequence index>. The <sequence index> distinguishes the position even when different entries have the same value.