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

Hacker
Rank
Score
81
flag of India
100.00
82
flag of China
100.00
83
flag of India
100.00
84
flag of Turkey
100.00
85
flag of United States
100.00
86
flag of China
100.00
87
flag of Bangladesh
100.00
89
flag of Kazakhstan
100.00
90
flag of India
100.00
91
flag of India
100.00
92
flag of India
100.00
94
flag of United States
100.00
96
flag of India
100.00
97
flag of India
100.00
98
flag of United States
100.00
99
flag of Poland
100.00
100
flag of United States
100.00
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