<a href="https://possiblyfunny.tumblr.com/" style="text-decoration:underline;">possiblyfunny</a>:
<p><i>Ah…</i> Well, <i>that’s</i> a little more complicated than I thought it would be. <i>You sure do like your puzzles, old man…</i></p><p>Oh well! <i>Lemme try something…</i></p><p><i>[tries the numbers 2-7-2-4-3-2 in that order]</i></p>
You try a few more patterns, but brute forcing it doesn’t seem to work as well as you’d hope. Maybe you could double check the riddle, or come back to this later?