As accessible on the "past" link above, there was a good discussion earlier on this solution of sphere-packing in d = 8 and d = 24, featuring an epic explanatory comment: <a href="https://news.ycombinator.com/item?id=11394534" rel="nofollow">https://news.ycombinator.com/item?id=11394534</a>
<a href="http://oeis.org/A257479" rel="nofollow">http://oeis.org/A257479</a> Maximal kissing number in n dimensions: maximal number of unit spheres that can touch another unit sphere.