The following pictures show n tans (with short side 1) packed inside the smallest known domino (with short side length s).
1. 
s = 1/√2 = .70710+
Trivial.
2. 
s = 2√2/3 = .94280+
Found by Maurizio Morandi in June 2026.
3. 
s = .99900+
Found by Maurizio Morandi in June 2026.
4. 
s = 1
Trivial.
5. 
s = 1.30157+
Found by Jonathan Viquerat in June 2026.
6. 
s = 4/3 = 1.33333+
Found by Maurizio Morandi in June 2026.
7.-8. 
s = √2 = 1.41421+
Trivial.
9. 
s = 1.60607+
Found by Joshua Wolk in September 2026.
10. 
s = 1.69605+
Found by Joshua Wolk in September 2026.
11. 
s = 1.74198+
Found by Joshua Wolk in September 2026.
12. 
s = 3(1+√2)/4 = 1.81066+
Found by Maurizio Morandi in June 2026.
13. 
s = 1.89902+
Found by Joshua Wolk in September 2026.
14. 
s = 1.94908+
Found by Joshua Wolk in September 2026.
15. 
s = 1.99763+
Found by Joshua Wolk in September 2026.
16. 
s = 2
Trivial.
17. 
s = (7+4√2)/6 = 2.10947+
Found by Maurizio Morandi in June 2026.
18. 
s = 2.15821+
Found by Joshua Wolk in September 2026.
19. 
s = 2.25295+
Found by Joshua Wolk in September 2026.
20. 
s = 2.31038+
Found by Joshua Wolk in September 2026.
21. 
s = 2.36828+
Found by Joshua Wolk in September 2026.
22. 
s = 2.40181+
Found by Joshua Wolk in September 2026.
23. 
s = 1 + √2 = 2.41421+
Found by Maurizio Morandi in October 2026.
24. 
s = 2.51320+
Found by Joshua Wolk in September 2026.
25. 
s = 2.57643+
Found by Yanis Gomes in October 2026.
26. 
s = 2.63863+
Found by Yanis Gomes in October 2026.
27. 
s = 2.68558+
Found by Joshua Wolk in September 2026.
28. 
s = 2.72131+
Found by Joshua Wolk in September 2026.
29. 
s = 2.77446+
Found by Joshua Wolk in September 2026.
30. 
s = 2.80809+
Found by Joshua Wolk in September 2026.
31. 
s = 2.82824+
Found by Joshua Wolk in September 2026.
32. 
s = 2√2 = 2.82842+
Found by Joshua Wolk in September 2026.
33. 
s = 2.91393+
Found by Joost de Winter
in October 2026.
34. 
s = 2.96277+
Found by Joost de Winter
in October 2026.
35. 
s = 2.99891+
Found by Yanis Gomes in October 2026.
36. 
s = 3
Trivial.
37. 
s = 2+3√2/4 = 3.06066+
Found by Maurizio Morandi in October 2026.
38. 
s = 3.12518+
Found by Joshua Wolk in September 2026.
39. 
s = 3.18580+
Found by Joshua Wolk in September 2026.
40. 
s = 3.23630+
Found by Joshua Wolk in September 2026.
41. 
s = 3.27171+
Found by Joshua Wolk in September 2026.
42. 
s = 3.29664+
Found by Joshua Wolk in September 2026.
43. 
s = 3.35070+
Found by Joshua Wolk in September 2026.
44. 
s = 3.39206+
Found by Joshua Wolk in September 2026.
45. 
s = 3.41388+
Found by Yanis Gomes in October 2026.
446. 
s = 3.41405+
Found by Yanis Gomes in October 2026.
47. 
s = 3.47480+
Found by Joshua Wolk in September 2026.
48. 
s = 3.50520+
Found by Beckett Kaplinski in October 2026.
49. 
s = 3.52804+
Found by Yanis Gomes in October 2026.
50. 
s = 3.57912+
Found by Joshua Wolk in September 2026.