Missing coordinates
Every entry on this site shows verified coordinates — but not always the record holder's own. This page lists what's missing. If any of it is yours (or you can reach whoever it belongs to), a submission is a plain pull request — see CONTRIBUTING; coordinates are verified in exact arithmetic and go live within minutes of merging, credited to their finder.
Originals never published
These entries are shown as reconstructions — numerical re-derivations seeded from the published figures, matching the published value and symmetry — because no independent source of the finder's own arrangement exists anywhere we know of. The originals live only with their finders.
| entry | published | found by |
|---|---|---|
| convex n=8 | A = .0800+ |
David Cantrell, June 2007 |
| convex n=9 | A = .0640+ |
David Cantrell, June 2007 |
| convex n=10 | A = .0519+ |
David Cantrell, June 2007 |
| convex n=11 | A = 2/47 = .0425+ |
David Cantrell, June 2007 |
| convex n=12 | A = 2/51 = .0392+ |
David Cantrell, June 2007 |
| convex n=16 | A = .0222+ |
David Cantrell, June 2007 |
| triangle n=10 | A = .0433+ |
David Cantrell, June 2007 |
| triangle n=12 | A = .0310+ |
David Cantrell, July 2006 |
| triangle n=14 | A = .0237+ |
David Cantrell, June 2007 |
| triangle n=15 | A = .0210+ |
David Cantrell, June 2007 |
| triangle n=16 | A = .0179+ |
David Cantrell, June 2007 |
Also welcome, beyond coordinates: exact algebraic values (minimal polynomials) for any entry that shows only a decimal — see the methods page for how those are validated.