<p><span class="h-card" translate="no"><a href="https://mastodon.social/@dyalog" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>dyalog</span></a></span> May I offer an absolutely stupid alternative implementation of the same thing?</p><pre><code>⊃ { 0=⌊0.5+(∘.-⍨ ⍳⍵)÷3 }/<br></code></pre>