Ah, this reminds me — for a very long time there was a page called “The Sierpinski Triangle Page to End Most Sierpinski Triangle Pages” - which was a stunning tour de force, it seemingly went forever, covering every possible way to create, consider, discover, unveil or rediscover the Sierpinski triangle (and its many, many variants)
I clicked around, it seemed to work (I was not surprised, the Internet Archive does not fsck around). The loading experience for the page was somewhat horrible though with a large of number of warnings. And I can't reload it, now it seems dead. Perhaps something does fsck with the IA, sometimes.
It was here:
https://www.oftenpaper.net/sierpinski.htm
Recently - in an internet mystery to end most internet mysteries - the page has gone off line.
I don’t know how to contact the author to provide assistance, care, anything that is needed.
There are copies in the archive.org - though I’m not sure the embedded code demo will work there.
https://web.archive.org/web/20230317130700/https://www.often...