Cubes in Cubes

The following pictures show n unit cubes packed inside the smallest known cube (of side s). For all other values of n < 34, the trivial packing is the best known.

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.