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

Hacker
Rank
Score
141
flag of India
100.00
142
flag of United Kingdom
100.00
143
flag of Turkey
100.00
144
flag of Brazil
100.00
145
flag of United States
100.00
147
flag of United Kingdom
100.00
149
flag of Indonesia
100.00
150
flag of United States
100.00
151
flag of India
100.00
152
flag of India
100.00
153
flag of India
100.00
155
flag of Canada
100.00
156
flag of Russian Federation
100.00
157
flag of India
100.00
158
flag of Turkey
100.00
160
flag of China
100.00
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