Octagons in Octagons

The following pictures show n unit octagons packed inside the smallest known octagon (with side s).

1.
           2.
           3.
s = 1
Trivial.
  		s = 2
Trivial.
  		s = 2.17151+
Found by Ignacio Vallejo
in March 2026.

4.
           5.
           6.
s = 2.38891+
Found by Ignacio Vallejo
in March 2026. 		s = 2.70705+
Found by Ignacio Vallejo
in March 2026. 		s = 2.98915+
Found by Ignacio Vallejo
in March 2026.

7.
           8.
           9.
s = 3
Trivial.
  		s = 3.27526+
Found by Ignacio Vallejo
in March 2026. 		s = 3.41417+
Found by Ignacio Vallejo
in March 2026.

10.
s = 3.70705+
Found by Ignacio Vallejo
in March 2026.