Project Euler #174: Counting the number of "hollow" square laminae that can form one, two, three, ... distinct arrangements.

Hacker
Rank
Score
121
flag of Germany
100.00
122
flag of United States
100.00
123
flag of India
100.00
125
flag of India
100.00
126
flag of Australia
100.00
127
flag of Algeria
100.00
128
flag of United States
100.00
129
flag of Indonesia
100.00
130
flag of China
100.00
132
flag of United States
100.00
133
flag of United States
100.00
134
flag of India
100.00
135
flag of India
100.00
136
flag of Canada
100.00
137
flag of Poland
100.00
138
flag of China
100.00
139
flag of Netherlands
100.00
140
flag of United States
100.00
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