Unrelated, but at the bottom of <a href="http:&#x2F;&#x2F;celeriac.net&#x2F;sx&#x2F;public&#x2F;" rel="nofollow">http:&#x2F;&#x2F;celeriac.net&#x2F;sx&#x2F;public&#x2F;</a> is a sonification of Van Eck&#x27;s sequence