Project Euler #44: Pentagon numbers

Hacker
Rank
Score
4121
flag of India
66.67
4122
flag of India
66.67
4123
flag of India
66.67
4124
flag of India
66.67
4126
flag of India
66.67
4128
flag of India
66.67
4129
flag of Germany
66.67
4131
flag of India
66.67
4133
flag of Hong Kong
66.67
4136
flag of Singapore
66.67
4138
flag of United States
66.67
4140
flag of India
66.67
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