9-10.
11.
| ||||
s = 2 + 1/ 2 = 2.707+Found by Erich Friedman in 1998. | s = 2 + 2 2/5 + 3/5 = 2.912+Found by Erich Friedman in 1998. |
12.
13.
| ||||
s = 2 + 2 2/3 = 2.942+Found by Erich Friedman in 1998. | s = 2.956+ Found by Erich Friedman in 1998. |
14.
28-33.
| ||||
s = 2 + 7 2/10 = 2.989+Found by Erich Friedman in 1998. | s = 3 + 1/ 2 = 3.707+Found by Erich Friedman in 1998. |