touch other pennies in the subset
... that, no matter how n non-overlapping pennies are arranged on a table, there is a subset containing at least 0.258n of them that will not touch other pennies in the subset?
... that, no matter how <span about="#mwt83" class="texhtml mvar" data-mw='{"parts":[{"template":{"target":{"wt":"mvar","href":"./Template:Mvar"},"params":{"1":{"wt":"n"}},"i":0}}]}' id="mwCF8" style="font-style:italic;" typeof="mw:Transclusion">n</span> non-overlapping pennies are arranged on a table, there is a subset containing at least <span about="#mwt84" class="texhtml" data-mw="{&quot;parts&quot;:[{&quot;template&quot;:{&quot;target&quot;:{&quot;wt&quot;:&quot;math&quot;,&quot;href&quot;:&quot;./Template:Math&quot;},&quot;params&quot;:{&quot;1&quot;:{&quot;wt&quot;:&quot;0.258''n''&quot;}},&quot;i&quot;:0}}]}" id="mwCGA" typeof="mw:Transclusion">0.258<i>n</i></span> of them that will not <b id="mwCGE"><a href="./Penny_graph" id="mwCGI" rel="mw:WikiLink" title="Penny graph">touch other pennies in the subset</a></b>?