Consecutive Dominoes in Squares
The following pictures show n dominoes with short sides 1, 2, . . . n packed inside the smallest square (of side length s). All of these are probably optimal, except for possibly n=20.


1.

s = 2
Trivial.
2.

s = 4
Trivial.
3.

s = 6
Trivial.
4.

s = 8
Trivial.
5.

s = 11
Found by Erich Friedman
in 1998.
6.

s = 14
Found by Erich Friedman
in 1998.
7.

s = 17
Found by Erich Friedman
in 1998.
8.

s = 21
Found by Erich Friedman
in 1998.
9.

s = 24
Found by Erich Friedman
in 1998.
10.

s = 28
Found by Erich Friedman
in 1998.
11.

s = 32
Found by Erich Friedman
in 1998.
12.

s = 37
Found by Erich Friedman
in 1998.
13.

s = 41
Found by Erich Friedman
in 1998.
14.

s = 46
Found by Erich Friedman
in 2004.
15.

s = 50
Found by Erich Friedman
in 2004.
16.

s = 55
Found by Erich Friedman
in 2004.
17.

s = 60
Found by Erich Friedman
in 2004.
18.

s = 66
Found by Erich Friedman
in 2004.
19.

s = 71
Found by Erich Friedman
in 2004.
20.

s = 76
Found by Maurizio Morandi
in 2014.
21.

s = 82
Found by Erich Friedman
in 2014.
22.

s = 88
Found by Erich Friedman
in 2014.
23.

s = 94
Found by Erich Friedman
in 2014.
24.

s = 100
Found by Erich Friedman
in 2014.
25.

s = 106
Found by M. Sun and N. Sun
in June 2026.
26.

s = 112
Found by Ryan Chi and d/dx
in September 2026.
27.

s = 118
Found by Yanis Gomes
in November 2026.
28.

s = 125
Found by Yanis Gomes
in November 2026.
29.

s = 132
Found by Matthew Sun
in June 2026.
30.

s = 138
Found by Yanis Gomes
in November 2026.
31.

s = 145
Found by Yanis Gomes
in November 2026.
32.

s = 152
Found by Yanis Gomes
in November 2026.
33.

s = 159
Found by Yanis Gomes
in November 2026.
34.

s = 166
Found by Yanis Gomes
in November 2026.
35.

s = 174
Found by Matthew Sun
in June 2026.
36.

s = 181
Found by Yanis Gomes
in November 2026.
37.

s = 188
Found by Yanis Gomes
in November 2026.
38.

s = 196
Found by Yanis Gomes
in November 2026.
39.

s = 204
Found by Rowan Jones
in October 2026.
40.

s = 212
Found by Rowan Jones
in October 2026.
41.

s = 219
Found by Yanis Gomes
in November 2026.
42.

s = 227
Found by Yanis Gomes
in November 2026.
43.

s = 236
Found by Yanis Gomes
in November 2026.
44.

s = 244
Found by Yanis Gomes
in November 2026.
45.

s = 252
Found by Yanis Gomes
in November 2026.
46.
?
47.

s = 269
Found by Yanis Gomes
in November 2026.
48.

s = 277
Found by Yanis Gomes
in November 2026.
49.

s = 287
Found by Yanis Gomes
in November 2026.
50.

s = 296
Found by Yanis Gomes
in November 2026.