EricGT, just have a side question. How did you make that nice table in the Post?
This is the noted table. The topic was split so that it would not be buried in another post.
| n | 4chan lower bound | L₂(n) | Current Best Minimal Superpermutation Length | Known to be minimum | Current Best Minimal Superpermutation | |
|---|---|---|---|---|---|---|
| 1 | - | - | 1 | Yes | 1 | |
| 2 | - | - | 3 | Yes | 121 | |
| 3 | 9 | - | 9 | Yes | 123121321 | |
| 4 | 33 | 34 | 33 | Yes | 123412314231243121342132413214321 | |
| 5 | 152 | 154 | 153 | Yes | 123451234152341253412354123145231425314235142315423124531243512431524312543121345213425134215342135421324513241532413524132541321453214352143251432154321 | |
| 6 | 867 | 873 | 872 | No | 12345612345162345126345123645132645136245136425136452136451234651234156234152634 15236415234615234165234125634125364125346125341625341265341235641235461235416235 41263541236541326543126453162435162431562431652431625431624531642531462531426531 42563142536142531645231465231456231452631452361452316453216453126435126431526431 25643215642315462315426315423615423165423156421356421536241536214536215436215346 21354621345621346521346251346215364215634216534216354216345216342516342156432516 43256143256413256431265432165432615342613542613452613425613426513426153246513246 53124635124631524631254632154632514632541632546132546312456321456324156324516324 56132456312465321465324165324615326415326145326154326514362514365214356214352614 35216435214635214365124361524361254361245361243561243651423561423516423514623514 263514236514326541362541365241356241352641352461352416352413654213654123 | |
| 7 | 5884 | 5,908 | 5,906 | No | 5906 | link |
| 8 | 46,085 | 46,205 | 46,205 | No | 46,205 | |
| 9 | 408,246 | 408,966 | 408,966 | No | 408,966 |
Since all of the post are HTML and most of the basic HTML will pass through the Discourse filters unchanged, I created the table by typing in raw HTML. Remember I was coding during the days of punch cards, so there was a time when all HTML was coded by hand and yes I did many HTML pages by hand coding the HTML.
The raw HTML used in this post is
<table>
<tr>
<th>n</th>
<th>4chan lower bound</th>
<th>L₂(n)</th>
<th><a href=https://groups.google.com/forum/#!topic/superpermutators/bkaogtr9zqE>Current Best Minimal Superpermutation Length</a></th>
<th>Known to be minimum</th>
<th>Current Best Minimal Superpermutation</th>
</tr>
<tr>
<td>1</td>
<td>-</td>
<td>-</td>
<td>1</td>
<td><a href="http://www.njohnston.ca/2014/08/all-minimal-superpermutations-on-five-symbols-have-been-found/">Yes</a></td>
<td>1</td>
</tr>
<tr>
<td>2</td>
<td>-</td>
<td>-</td>
<td>3</td>
<td>Yes</td>
<td>121</td>
</tr>
<tr>
<td>3</td>
<td>9</td>
<td>-</td>
<td>9</td>
<td>Yes</td>
<td>123121321</td>
</tr>
<tr>
<td>4</td>
<td>33</td>
<td>34</td>
<td>33</td>
<td>Yes</td>
<td>123412314231243121342132413214321</td>
</tr>
<tr>
<td>5</td>
<td>152</td>
<td>154</td>
<td>153</td>
<td>Yes</td>
<td>123451234152341253412354123145231425314235142315423124531243512431524312543121345213425134215342135421324513241532413524132541321453214352143251432154321</td>
</tr>
<tr>
<td>6</td>
<td>867</td>
<td>873</td>
<td>872</td>
<td>No</td>
<td>12345612345162345126345123645132645136245136425136452136451234651234156234152634
15236415234615234165234125634125364125346125341625341265341235641235461235416235
41263541236541326543126453162435162431562431652431625431624531642531462531426531
42563142536142531645231465231456231452631452361452316453216453126435126431526431
25643215642315462315426315423615423165423156421356421536241536214536215436215346
21354621345621346521346251346215364215634216534216354216345216342516342156432516
43256143256413256431265432165432615342613542613452613425613426513426153246513246
53124635124631524631254632154632514632541632546132546312456321456324156324516324
56132456312465321465324165324615326415326145326154326514362514365214356214352614
35216435214635214365124361524361254361245361243561243651423561423516423514623514
263514236514326541362541365241356241352641352461352416352413654213654123</td>
</tr>
<tr>
<td>7</td>
<td>5884</td>
<td>5,908</td>
<td>5,906</td>
<td>No</td>
<td><a href="https://www.gregegan.net/SCIENCE/Superpermutations/Superpermutations.html#NEWS2">5906</a></td>
<td><a href=https://www.gregegan.net/SCIENCE/Superpermutations/7_5908.txt>link</a></td>
</tr>
<tr>
<td>8</td>
<td>46,085</td>
<td>46,205</td>
<td>46,205</td>
<td>No</td>
<td><a href=https://www.gregegan.net/SCIENCE/Superpermutations/8_46205.txt>46,205</a></td>
</tr>
<tr>
<td>9</td>
<td>408,246</td>
<td>408,966</td>
<td>408,966</td>
<td>No</td>
<td><a href=https://raw.githubusercontent.com/superpermutators/superperm/master/superpermutations/9/408966.txt>408,966</a></td>
</tr>
</table>
How did I get the HTML code to show as HTML code?
```html HTML code ```
How did I get the Markdown code (```html and ```) to show as markdown code?
<pre>
Markdown code
</pre>
How did I get the <pre> and <\pre> tags to show?
Just bookend the section with ```.
Lets’ just say that I have done it more ways wrong than most people have done it and so now know the right ways.
For a more complicated table that tried to insert SVG images generated using GraphViz DOT see this. As best as I can figure, Discourse does not allow links to images in HTML table cells. So the images should be side by side and not top to bottom.
This is a wiki so that you can click on 
in the lower right of this post and see the raw HTML.
EDIT 09/19/2019
See: Discourse meta - Can someone explain post formatting with HTML?
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