| Date | Subject |
|---|---|
| December 9, 1995 | ASK MARILYN |
| February 11, 2003 | Ulam(1,2) |
| February 11, 2003 | Ulam(1,2) |
| February 11, 2003 | Ulam(1,2) |
| February 11, 2003 | Ulam(1,2) |
| February 11, 2003 | Ulam(1,2) |
| September 26, 2003 | Kissing number (again). |
| September 26, 2003 | Kissing number (again). |
| September 26, 2003 | Kissing number (again). |
| September 29, 2003 | More on sphere packing |