Pythagorean tiling
... that the Pythagorean tiling, a pattern of squares of two sizes that can be used to prove the Pythagorean theorem, appears in a painting by Dutch Golden Age artist Jacob Ochtervelt?
... that the <b id="mwAwE"><a href="./Pythagorean_tiling" id="mwAwI" rel="mw:WikiLink" title="Pythagorean tiling">Pythagorean tiling</a></b>, a pattern of <a class="mw-redirect" href="./Square_(geometry)" id="mwAwM" rel="mw:WikiLink" title="Square (geometry)">squares</a> of two sizes that can be used to prove the <a href="./Pythagorean_theorem" id="mwAwQ" rel="mw:WikiLink" title="Pythagorean theorem">Pythagorean theorem</a>, appears in a painting <i id="mwAwU">(pictured)</i> by <a href="./Dutch_Golden_Age_painting" id="mwAwY" rel="mw:WikiLink" title="Dutch Golden Age painting">Dutch Golden Age</a> artist <a href="./Jacob_Ochtervelt" id="mwAwc" rel="mw:WikiLink" title="Jacob Ochtervelt">Jacob Ochtervelt</a>?