"comment-func-sequence-t_-t-next_-escaping-t-t"><div class="p">
    <p>Returns a sequence formed from <code>first</code> and repeated lazy applications of
<code>next</code>.</p>

<p>The first element in the sequence is always <code>first</code>, and each successive
element is the result of invoking <code>next</code> with the previous element. The
sequence ends when <code>next</code> returns <code>nil</code>. If <code>next</code> never returns <code>nil</code>, the
sequence is infinite.</p>

<p>This function