Length  Square		Gap
1		1 x 1		---
4		2 x 2		---
8		3 x 3		1 x 1
9		3 x 3		---
12		4 x 4		2 x 2
16		4 x 4		---
20		6 x 6		4 x 4
22		5 x 5		1 x 3
24		5 x 5		1 x 1
25		5 x 5		---
28		8 x 8		6 x 6
32		6 x 6		2 x 2
34		7 x 7		3 x 5
36		6 x 6		---
40		7 x 7		3 x 3
44		12 x 12		10 x 10
46		7 x 7		1 x 3
48		7 x 7		1 x 1
49		7 x 7		---
52		14 x 14		12 x 12
56		9 x 9		5 x 5
58		11 x 11		7 x 9
60		8 x 8		2 x 2
64		8 x 8		---
66		9 x 9		3 x 5
68		18 x 18		16 x 16
70		13 x 13		9 x 11
72		9 x 9		3 x 3
74		9 x 9		1 x 7
76		20 x 20		18 x 18
78		9 x 9		1 x 3
80		9 x 9		1 x 1
81		9 x 9		---
82		15 x 15		11 x 13
84		10 x 10		4 x 4
86		11 x 11		5 x 7
88		13 x 13		9 x 9
92		24 x 24		22 x 22
94		17 x 17		13 x 15
96		10 x 10		2 x 2
100		10 x 10		---