   2     2</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 2   3     8</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 3   4    29</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 4   5    33</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 5   6    55</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> 6   7    61</span>
<span class="r-in"><span><span class="fu"><a href="https://rdrr.io/r/graphics/plot.default.html" class="external-link">plot<