Project Euler #173: Using up to one million tiles how many different "hollow" square laminae can be formed?

Hacker
Rank
Score
01
flag of France
100.00
02
flag of China
100.00
03
flag of Indonesia
100.00
04
flag of Ukraine
100.00
05
flag of Ukraine
100.00
06
flag of United Kingdom
100.00
08
flag of India
100.00
09
flag of China
100.00
10
flag of Singapore
100.00
11
flag of United Kingdom
100.00
12
flag of Russia
100.00
13
flag of United Kingdom
100.00
14
flag of United States
100.00
16
flag of United States
100.00
17
flag of India
100.00
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