Project Euler #167: Investigating Ulam sequences

Hacker
Rank
Score
243
flag of Turkey
30.00
246
flag of Viet Nam
30.00
249
flag of India
30.00
250
flag of United States
30.00
251
flag of India
30.00
252
flag of Japan
30.00
253
flag of Hong Kong
30.00
255
flag of India
30.00
258
flag of Singapore
30.00
260
flag of India
30.00
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